I have started listening to Adyashanti's Five Truths About Truth, and find his way of talking to be as refreshing, simple and clear as always.
He is one of the few I know who talks about the awakening of the belly center. He mentioned it in passing at his satsang in Ashland, and has probably talked about it in more detail other times (still looking for it).
Feeling into being emptiness
In Five Truths About Truth, I notice that he emphasizes feeling into the experience of being awake emptiness.
In my experience, that is one of the aspects of the awakening of the belly center. It allows for and invites to a deepening feeling, with the whole body and every cell of the body, that all is Spirit, all is awake emptiness and form, and it allows for a deepening reorganization of the body and the emotions within this new context.
Practice, and dropping into it
The difference is that before an awakening (even a very early awakening, as in my case) it remains a practice, something we have to intentionally do. After, it happens on its own, and the only intention is to surrender anything coming up, any beliefs, identities, any aspect of the personality, to it.
Alive luminous blackness
Also, before the belly center awakening the term fertile darkness does not make so much sense (at least it didn't for me). After, it becomes a living presence, an immediate experience.
It is a fertile darkness, an alive luminous blackness which is the ground of all forms, gives a deep sense of fullness and nurturing, and allows for a deep reorganization and healing of the emotional level. And as Almaas writes, and I have experienced since the (early) belly awakening some weeks ago, this luminous blackness is experienced everywhere, as if "peering out through all forms" as he puts it.
Almaas, and Barry and Karen the diksha givers, are the only ones I have found so far whose experiences with this reflects my own, down into the details, although it must be a relatively common occurrence, it is just that I haven't explored it before in this way, and not looked for descriptions of it.