Then Kalu tried his level best to turn Nanak’s mind towards worldly matters. He put Nanak in the work of looking after the cultivation of the land. Nanak did not pay any attention to his work. He meditated even in the fields. He went out to tend the cattle, but centred his mind on the worship of God. The cattle trespassed into a neighbour’s field. Kalu rebuked Nanak for his idleness. Nanak replied, "I am not idle, but am busy in guarding my own fields".

Kalu asked him, "Where are your fields?" Nanak replied, "My body is a field. The mind is the ploughman. Righteousness is the cultivation. Modesty is water for irrigation. I have sown the field with the seed of the sacred Name of the Lord. Contentment is my field’s harrow. Humility is its hedge. The seeds will germinate into a good crop with love and devotion. Fortunate is the house in which such a crop is brought! O sir, mammon will not accompany us to the next world. It has infatuated the whole world, but there are few who understand its delusive nature".

Then Kalu put him in charge of a small shop. Nanak distributed the things to Sadhus and poor people. He would give away in charity whatever he could lay hands on in his father’s house and in the shop. Nanak said, "My shop is made of time and space. Its store consists of the commodities of truth and self-control. I am always dealing with my customers, the Sadhus and Mahatmas, contact with whom is very profitable indeed".

When Nanak was fifteen years of age, his father gave him twenty rupees and said, "Nanak, go to the market and purchase some profitable commodity". Kalu sent his servant Bala also to accompany Nanak. Nanak and Bala reached Chuhar Kana, a village about twenty miles from Talwandi. Nanak met a party of Fakirs. He thought within himself: "Let me feed these Fakirs now. This is the most profitable bargain I can make". He purchased provisions immediately and fed them sumptuously. Then he came back to his house. The servant informed his master of his son’s bargain. Kalu was very much annoyed. He gave a slap on Nanak’s face.

Kalu thought that Nanak did not like sedentary work. Therefore he said to Nanak, "O dear son! Ride on a horse and do travelling business. This will suit you nicely". Nanak replied, "Revered father! My trade is divine knowledge. The profits are the purseful of good deeds with which I can certainly reach the domain of the Lord".

Then father told Nanak: "If you do not like trade or business, you may serve in some office". Nanak replied, "I am already a servant of God. I am endeavouring to do my duty honestly and whole-heartedly in the service of my Lord. I carry out His behests implicitly. I desire fervently to get the reward of divine grace from the Lord by serving Him untiringly and incessantly". On hearing this, the father became silent and retired from there.