What Really Matters
To be Christian, I would say, is to live within the Christian tradition as a metaphor of the sacred, and also as a sacrament of the sacred. The tradition as a whole has as one of its main purposes mediating the reality of the spirit or the reality of the sacred—that is, entering into a relationship with the sacred. It's about entering into a relationship with suchness, with is-ness. I think of God, to use very abstract language, as is-ness without limits. Our relationship to is-ness matters profoundly. It will shape our whole way of being in the world.

-–Dr. Marcus Borg
from the question “ … Is believing certain creeds really what
Christianity is all about?”