Alison, what I really like about you sharing a bit about your spiritual practice is that it is somewhat neutral ground for the two of you.
What I mean by that is that it isn't marred by negative memories for the two of you. It isn't triggering. But at the same time it is something deeply personal and importantant to you, so it is a form of you opening up to him, and a form of him listening to you.
You aren't at the stage of sharing emotions, but you can share this right now and he can see you in a new light of who you are as a whole person. This seems very positive, and appropriately cautious.