sn.45.164 Saṁyutta Nikāya (Linked Discourses)
States of Existence
“There are these three states of existence.What three?
Existence in the sensual realm, the realm of luminous form, and the formless realm.
These are the three states of existence.
The noble eightfold path should be developed for the direct knowledge, complete understanding, finishing, and giving up of these three states of existence.”