One of guards reports that “once for some reasons I was forced to pass in front of Imam’s room at midnight during Ramadan. While crossing, I noticed that Imam had been busy in performing prayers and reciting supplications.”
The guard recalls that Imam was shedding tears unto God, the Almighty and his voice was echoing through the surroundings.
“I was deeply impressed by all this,” the guard said.
(Sahifeh ye-Dil [scripture through core of heart], Vol. 1, P.51)