five degrees of enlightenment 

Scheme adopted within the Ch'an and zen schools of Buddhism which classifies the nature of bodhi, or religious awakening, into five increasingly profound levels, the fifth being the highest. The gradations are based on the doctrine of ‘Two Truths’, namely relative and absolute truth, as expounded by the Madhyamaka school, and concern the manner in which each level of truth, and the relation between them, is perceived. The five degrees of enlightenment are termed: (1) Sho-chu-hen, or the absolute within the relative; (2) Hen-chu-sho, or the relative within the absolute; (3) Sho-chu-rai, or the absolute alone; (4) Ken-chu-shi, or the relative alone; (5) Ken-chu-to, or the absolute and the relative together.

A Dictionary of Buddhism, Oxford University Press, 2003, 2004 (which is available in electronic version from answer.com)