This story is an excerpt from a room conversation with Srila Prabhupada recorded on 16 July, 1968 in Montreal, Canada.

Expert means whatever he is doing, he must do it very nicely That's all. Suppose you are sweeping this room. You can do it very nicely, to your best knowledge. That is expert. The people will say, "Oh, you have very nicely done." Any work you do, do it very nicely. That is expert. Don't do it haphazardly. To your best talent, to your best capacity, try to finish it very nicely, whatever it may be.

You are entrusted with some work. Do it nicely. That is expert. If you think that you are unable to do that work, then whatever work you can do, you take. But do it nicely. That is expert. Don't imitate. "Oh, I have no capacity to work in that way, but I want to imitate. Oh, he is doing that. I shall do that." Don't do that. That is not expert. You take up what you can do very nicely and do it nicely.

We have so many works. Kṛṣṇa is not that He is static. He is dynamic force. Just like Arjuna, he was not a Vedantist, he was not a brāhmaṇa, he was not a sannyāsī. He was householder. He was military man. But he knew his business, how to do it nicely. So you do your business nicely. That is expert.

And when it is dovetailed in Kṛṣṇa, there is no gradation that this business is better and that business is lower because everything is for Kṛṣṇa. So that business becomes Kṛṣṇa. Do it nicely and Kṛṣṇa is satisfied. And that is your success.

Avyāpare suvyaparam yo naraḥ kartum icchati, sa-mulo hanyate 'khila pārthiva vānaraḥ. Expert.

There is a very nice story in Sanskrit. A monkey. A monkey... You might have some experience, that sawmen, who cut wood? Sawmen. So a sawman was cutting wood by the saw. So at the end of business it was half cut so he pulled down a, I mean to say, a plug so that next day he will come and he'll again begin sawing. So went away.

So one monkey came. So monkey sat down there and began to pull on the plug because monkey's business is simply mischievous. So he did not know that his plough and some portion of his thigh was within the hole and when he took out this plug it was, (claps) I mean to say, clipped, and he could not get out and died.

So the instruction is that... 'Khila pārthiva vānaraḥ, vyāpare suvyaparam. Avyāpara means a occupation, an occupation which is not fit for you. That is avyāpara. Avyāpara-suvyaparam. And one occupation which is not exactly fitting you, you do not know how to do it, so avyāpare suvyaparam yo kartu... If one wants to act in a business in which he is unable to do, then he is killed just like this fool monkey.

Avyāpare suvyaparam yo naraḥ kartum icchati, sa-mulo hanyate. That foolish person is killed just like this monkey. The monkey's business was not to imitate the sawman, but he wanted to imitate. The result was that he was killed. So that is not expertness.

Expertness is you just try to do which is easily performed by you. You don't accept anything heavy task because Kṛṣṇa does not want that you have to do this heavy task. Whatever you know, you just apply it. You dovetail it in Kṛṣṇa consciousness.

Kṛṣṇa does not say that you have to become like this, like that, like that, then you can serve Him. Does not say. Just like this cow. Just see. What does it know? He's an animal. You see? But the calf knows to brush his head and tongue like this, in love. It is doing and Kṛṣṇa accepting, "Yes." That is expert.

First of all find out what is easily done by you. Don't take anything which is not easily done by you. You find out what is your occupation, what you can very nicely and easily perform, and do it for Kṛṣṇa.

Nature gave us the opportunity to realize God, but God-realization is meant for human being. The human being, if he does not realize God, he's simply engaged in animalistic way of life—eating, sleeping, mating—then nature will call, "All right, sir, again become animal." Punar mūṣiko bhava: "Again become a mouse."

You know this story? Punar mūṣiko bhava. There is a story. There is a very nice story. One rat, mouse, he came to a saintly person. Everyone comes to saintly person for some blessing, you see. Real blessing they don't want. Some material blessing. Real blessing, Kṛṣṇa, they don't want. If you give him some blessing that "You become very rich man and..." These... they'll be very much pleased.

So this mouse also came and begged the saintly person, "Sir, I am in difficulty. If you give me some blessing?"

"What is that?"

"The cat chases after me always. I'm very unhappy."

"So what do you want?"

"Now, if you make me a cat, then I can get relief from this."

"All right, you become cat." So he became cat.

So after few days, again he comes. "Sir, again I am in trouble."

"What is that?"

"The dog is chasing me." (laughter) Don't laugh, hear seriously. "Dog is chasing me."

"All right, then, what do you want?"

"Now, make me a tiger."

"All right, you become a tiger."

So when he became a tiger he was staring on the saintly person like this.

So he asked, "Why you are staring upon me? You want to eat me?"

"Yes."

So he again curses, punar mūṣiko bhava: "Again you become mouse. Again you become mouse."

So that is our position. We are advanced in civilization. Now we want to kill God. So we are again going to be uncivilized, to remain in the forest and to remain naked. Actually, they are practicing that: nature's life. So again they are going to be aborigines. And that is being practiced. They are going to the forest, they remain naked. So actually, punar mūṣiko bhava: "Again become mouse."

There is a nice verse of Bilvamaṅgala Ṭhākura. He lived for seven hundred years in Vṛndāvana, and he was, became a great devotee of Kṛṣṇa. In the beginning he was an impersonalist. His life is very nice. It is better to cite his life.

He was a South Indian brāhmaṇa, a very rich man and very much sensuous. He kept one prostitute, prostitute. So he was so much, I mean to say, devoted to the prostitute that he was performing his father's death ceremony and he was asking the priest, "Please, haste. Please make haste. I have to go. I have to go." Means prostitute's house.

So he was very rich man. Priestly, anyway, he finished that business. Then there was ceremony. He took very nice foodstuff in a bag, and he was going to that prostitute's house. But when he came out of his home, oh, it was raining torrently. You see? So he never cared for that raining. He went to the riverside. Oh, there was no boat, and it was, river was waving. The waves were very furious. And he thought that "How can I go to the other side?" He was daily going to the other side of the river. Then, anyway, he swimmed over, crossed over by swimming.

Then the prostitute thought, "Oh, it is today raining, and he may not come." So he (she) blocked the door and went to sleep. And when he came to the house he saw, "Oh, the door is blocked," and it was raining still. "So how can I go?" So he crossed over the wall by catching one snake. Just see how much intensely he was attached.

And he went to the prostitute, and she was astonished: "Well, Bilvamaṅgala"—his name was Bilvamaṅgala—"how do you dare to come here like this?"

Oh, he described, "Yes. I did this, I did this, I did this, I did this."

Oh, the prostitute was astonished. Her name was Cintāmaṇi. So the prostitute said, "My dear Bilvamaṅgala, if you have got so intense love for me, oh, had it been for God, for Kṛṣṇa, how would have been, your life, sublime."

Oh, that struck him: "Yes." He at once left and went away: "Yes, you are right."

Then he was (going to) Vṛndāvana. He saw another beautiful woman because he was practiced to that habit. So he was going behind. Although he determined, "Now I am going to Vṛndāvana," on the way he was again attracted by another woman. So he followed that woman. That woman belonged to a respectable family.

So he came, and the woman said to her husband, "Oh, this man is following me. Please ask, 'What is the idea?' "

So the husband asked, "My dear sir, you appear to be very nice gentleman, and you belong to very aristocratic family. From your appearances I understand. What do you want? Why you are following my wife?"

He said, "Yes, I am following wife because I want to embrace her."

"Oh, you want to embrace? Come on. Embrace. Come on. You are welcome. Come on."

So the wife also... She (he) ordered, "Oh, here is a guest. He wants to embrace you and kiss you. So please decorate yourself nicely so that he may enjoy."

So the wife also followed the instruction of the husband because wife's duty is to follow the instruction. And when Bilvamaṅgala came inside before the woman, he said, "My dear mother, will you kindly give your hairpins?"

"Yes. Why?"

"I have got some business."

Then he took the hairpin and at once pierced his eyes: "Oh, this eye is my enemy." And he became blind. He became blind.

Then all of them... "That's all right. Now no more I shall be disturbed."

So in that blindness he was penancing, austerity in Vṛndāvana. So by the grace of Kṛṣṇa, Kṛṣṇa came like a boy. "Oh, my dear sir, why you are starving? Why don't you take some milk?"

"Oh, who are You, my dear boy?"

"Oh, I am a boy of this village. I am a cowherd boy. If you like, I can give you daily some milk."

"All right."

So Kṛṣṇa supplied him milk. So there was friendship. And he has written that bhakti is such a thing that muktiḥ mukulitāñjali sevate asmān:

"Mukti, mukti is nothing for me."

So this is his verse, muktiḥ mukulitāñjali sevate asmān:

"So we have no desire for mukti. When Kṛṣṇa comes to supply milk, oh, then what is the use of my mukti?"

You see? That's a great soul, Bilvamaṅgala Ṭhākura. It is worth to remember his name.

For seven hundred hears he lived in Vṛndāvana, and he has written a nice book which is Kṛṣṇa-karṇāmṛta. That is a very authoritative book, Kṛṣṇa-karṇāmṛta. Lord Caitanya picked up this book, and He recommended all His devotees to read that Kṛṣṇa-karṇāmṛta book.