5 surviving letters between Evagrius Ponticus and John II of Jerusalem, spanning 390 AD.
Evagrius calls himself a barren spiritual field and praises Olympas's consoling conversation.
Evagrius cannot shepherd his own soul and asks to be rescued by Christ the shepherd.
John shepherds mostly by the pipe, not the rod, and draws stray sheep back.
A consoling letter reaches Evagrius in the darkness of repentance.
Palladius brings a letter warning Evagrius against the snares of vainglory.