What happens to thinking?

Once that was a poor boy in a village. The financial condition of his family was not well. At times, circumstances became such that there was no room for food for all the members in his house. As his parents taught him till graduation. One day after the completion of the study this boy was going to give interviews in a city. He was traveling in the train.
When the time of the day's meal took place, all the people sitting around there started eating their tiffin and eating them. The boy's hunger was awakened and he also picked up his Tiffin. But today Tiffin had only bread and was not a vegetable. He acted like a vegetable with roti and put it in the mouth. The people around them were surprised to see him doing this again and again. Then a man asked the boy that when you have nothing to eat with roti in your Tiffin, then why are you pretending to have a vegetable with such bread?
On this the boy replied that I was thinking that like a pickle with my bread in my tiffin. On this, the man said that if you do this, the taste of pickle is coming?
The boy replied, "Yes, I think the bread is delicious only by thinking of it." Then listen to him. One other man said that if you are feeling tastes only after thinking then do not drink peas and paneer cheese!
Why are you picking the pickle?

So friends finally said this person right then that when thinking, why not think big! Only then will we be able to do some big work. When we can think freely by thinking, then why would you think of small?