These are not the best books ever written, just some I find personally compelling.

Magister Ludi, or The Glass Bead Game by Hermann Hesse

Apollo by Charles Murray and Catherine Bly Cox

Poet and Peasant and Through Peasant Eyes: A Literary-Cultural Approach to the Parables in Luke (Combined edition) by Kenneth E. Bailey

the Philokalia (4 vol) edited by Kalistos Ware

more later