What We Need for Union with God

Recently I posted this quote from Fr. Thomas Keating on Facebook:

If you’re curious about the source of this quote, it is found on page 71 of Open Mind, Open Heart.

In response, one reader posted this question as a comment:

Carl, what, in practice, does divine union actually mean? Surely we’ll be totally at one with God only in the next life?

It’s a fair qu…