There is a little story, very interesting. So one poor boy, he was student in a school, and the teacher's annual ceremony of father's death would be held. So he requested all his student, "What you will give me, contribution?" Formerly the teacher was not taking any salary. But whatever he wanted, the students will bring either from parents' house or by begging. That was the system. The teacher would not charge anything. A brāhmaṇa cannot be..., charge anything. Generally, the brāhmaṇas were teachers. That is one of the profession of the brāhmaṇa. Everyone must have livelihood. So brāhmaṇa livelihood is paṭhana pāṭhana. He must become a learned scholar, and he will make others also learned scholar. That is brāhmaṇa's business. Paṭhana pāṭhana yajana yājana dāna pratigrahaḥ. Ṣaṭ-karma. Six kinds of profession for the brāhmaṇas. And kṣatriya's profession is to give protection to the citizen and levy some tax, twenty-five percent, not more than that. Whatever is income your, give twenty-five percent to the kṣatriya king. That's all. That includes sales tax, this tax, that tax, so many tax, income tax. All finished. You give twenty-five percent. And if you have no income, no tax. Not like that even you have no income, "No, last year you gave so much tax. You must give it. Otherwise your property will be sold." Not like that. So that is kṣatriya's income. Similarly, vaiśya's income, kṛṣi-go-rakṣya-vāṇijyam (BG 18.44), agriculture, cow protection, and if there is excess foodstuff, then he can sell, make trade. And śūdras, they will simply help.
So this teacher, the original story, the teacher asked the student for... Somebody said, "I will contribute this cloth," somebody said, "I'll rice," somebody said something, something, something. There was one poor student, he had no means. He was very poor. So when he was asked, so he replied that "I cannot say anything without asking my mother." "All right, you ask your mother and tell me tomorrow." So he asked, "My dear mother, all my class friend has promised the teacher to contribute this, that, this, that. So my turn is there. What shall I promise?" The mother said, "My dear son, we are so poor, we cannot give anything. But if Kṛṣṇa gives, He is dīna-bandhu, the friend of the poor. So if He gives something to you, you can promise." "Oh, where is Kṛṣṇa? What is His name?" "Now, His name is Dīnabandhu, friend of the poor." "Where He is?" "I understand that He is in the forest." So he went to the forest and called, "Dīnabandhu brother, Dīnabandhu brother, where You?" He began to cry. So Kṛṣṇa came. When a devotee is very much eager to see Him, Kṛṣṇa comes. He very is kind. So "Why you are asking?" "My mother... You are Dīnabandhu?" "Yes." "So this is my condition, sir. What can I promise?" So He said that "You promise that you will supply yogurt, dahi. You will supply dahi." So he was very much satisfied. And he came to the teacher that "My Dīnabandhu brother, dādā, He will supply dahi, or yogurt, for whatever you require." "Oh, that's nice. Very good."
So on the day of ceremony, so he went to the forest again and called Dīnabandhu dādā, and He gave him a small pot of dahi, yogurt, a small pot. Oh, he was a child. He did not know.