Nowhere to go, nothing to do. No escape.

"Of course you may leave,
 But there is nowhere to go."

A student complained that after many years of participating in the Sangha, he was disheartened at his progress.  He wanted to leave, and he told his teacher.  The teacher told the student that he may leave the room and the monastery.  After attempting to leave the room through three different doors, and being told that each door was 'not [his] door', the student angrily objected:  'there is no door out of here!'  The teacher calmly suggested that he then sit down again.