Sorry for the double-posting, but I got an update on this issue:
I experienced another memory of this place last night. I'm not sure when I got hold of it (because it feels like I've remembered it years ago, but it's only just resurfaced) but it's very similar. It didn't come up during a planned meditation, but I let my mind drift while thinking of the sky and keeping it in my mind, and it popped into my head very vividly and realistically (when I came 'round from it, I was surprised about my living-room surroundings).
I feel a little more rooted. Still not sure if I'm in a particular form as it doesn't feel like feet are touching anything, but I'm definitely near the ground. The same sky is above me, the stars are still very close together and they're still very bright. But around me, there are 4 white pointed towers, 2 on each side of me (like I'm on a path with these towers lined either side of it).
There are lights or energy, something beaming up against these towers, giving them a yellowish appearance. The towers seem to be for aesthetics - they're not apartment blocks, they don't have windows or doors - simply a pointed white structure possibly made of stone.
There's a slight wind I can hear, but other than that, silence. I'm alone - there's no people around me, and the only activity seem to be these twinkling stars that (again) I'm staring up at.
For a slight visual reference, I drew something small (but I can really do it no justice):
Hmm ... definitely something for me to give thought to. <!-- s:? --><img src="{SMILIES_PATH}/icon_e_confused.gif" alt=":?" title="Confused" /><!-- s:? -->