A brother asked Abba Arsenius if he could hear a saying from him. The elder said to him: “As much as you are able, strive so that what goes on inside… - Arsenius the Great

Abba Mark said to Abba Arsenius: “Why do you run away from us?”
The elder said to him: “God knows that I love you, but I cannot be with God and with people. The thousands and tens of thousands above have one will, but people have many wills, so I cannot forsake God and come among people.”

When the same [person] had retired into the solitary life he prayed again, offering the same prayer, and he heard a voice saying to him: “Arsenius, take flight, keep silent and maintain hesychia, for these are the roots of sinlessness.”

A brother went to the cell of Abba Arsenius at Scete and, looking through the window, saw the elder as though he were all fire, for the brother was worthy to see [this.]
When he knocked, the elder came out and saw the brother looking astounded. “Have you been knocking for long?” he said to him.
“You didn’t see anything here?”
but he said: “No.”
The elder conversed with him and sent him on his way.