“By what is the world shut in?
On what is the world established?
By what is the world ensnared?
By what is it enveloped?”“The world is shut in by death;
The world is established on suffering;
The world is ensnared by craving;
It is enveloped by old age.”
SN1.68: Pihitasutta
Pihitasutta: Shut In - translated by Bhikkhu Bodhi
Translated by Bhikkhu Bodhi. Source text via SuttaCentral.