Imam Baqir (peace be upon him) once related:
Once, when my father was seated in the company of his companions, addressing them, he (peace be upon him) said: Which of you is willing to hold flaming fire in his hand till the flames die out?
All those present, as if to express their inability, lowered their heads and remained silent!
I said: Dear father! Do you permit me to do it? He said: No, dear son! You are from me and I am from you. It is these people whom I was addressing.
After this he repeated his request three times but when no one spoke up, he (peace be upon him) said: How numerous are those who talk and how few are those who act. I only wanted to have you tested.
Imam Baqir (peace be upon him) said: By God! At that moment I observed that they were overcome with such embarrassment that it appeared as if the earth was pulling them towards itself. Perspiration flowed from the foreheads of some, but they did not raise their lowered eyes.
When my father observed their embarrassment, he said to them: May God forgive you! I did not intend anything except goodness. Paradise has many ranks, one of which pertains to none but those who practice and act.
Imam Baqir (peace be upon him) said: After these words (from my father) when I looked at them, they seemed to have calmed down and appeared as if they have been relieved of a heavy and weighty burden. ( Daastaan-ha Wa Pand-ha, v. 2, p. 140, Kashkool of Bahrani, v. 2, p. 93. )