Six recollections

Six recollections (Wyl. rjes su dran pa drug)

1. Buddha (sangs rgyas)
2. Dharma (chos)
3. Sangha (dge 'dun)
4. Generosity (gtong ba)
5. Discipline (tshul khrims)
6. Gods or yidam deity (lha)

Note: the sixth recollection is sometimes said to refer to the gods of the higher realms, who have extraordinary powers of perception, and is sometimes said to refer to one's personal yidam deity.

Source

RigpaWiki:Six recollections