From The Manual of Zen Buddhism, D.T. Suzuki
By Shubun (15th Century)
a series of short poems and accompanying woodcuts that are intended to illustrate the stages of a Mahāyāna Buddhist practitioner's progression towards enlightenment, as well as his or her subsequent perfection of wisdom. The pictures first appeared in their present form, as drawn by the Chinese Chán (Zen) master Kuòān Shīyuǎn (廓庵師遠), in the 12th century, and may represent a Zen Buddhist interpretation of the ten stages experienced by a Bodhisattva as outlined in various Mahāyāna sūtras, most particularly the Avataṃsaka Sūtra.

Those are very famous zen illustration, I like them a lot, mostly for the simplicity poetic way , they express the spiritual way towards enlightenment.

Inspiring Beauty! thank you Einbar