What is the best Jesus Prayer?

The novice asked the Elder: “Father, tell me, what is the best Jesus prayer? With breathing or without breathing? "

“The best prayer," the Elder answered "is when you suddenly have to leave your cell and you will see that a person needs help, and you leave your path and help him, and the Lord will not leave you! And if you pass by, then no prayer will help you, my son! "

The Elder continued: "Prayer itself comes to the heart that knows how to love."