I had an interesting experience trying to understand space (3d spatial). Since it's not directly accessible to any sense organ, it has to be constructed by the mind using data from the senses. It seems to me that the sense of touch (feeling the body) is necessary to create a sense of spatial relations (me <-> object). This is where I get stuck -- seems like the mind doesn't know how to approach this concept. Even in brain-in-a-vat scenario with body-suit VR the knowing faculty is in relation (it's embedded) to an object inside a container -- "the vat", where the concept of "inside" comes from something unknown (3d space).

Any advice regarding approaching this subject? I tried reading about aether / akasha, but it didn't work.

I can't access space via the formal route. Philosophy is actually relatively shallow. I recommend tuning into your experience as it is manifesting right now. From there you might do a philosophy of timelessness or better yet follow your ❤️.

Also, space might have an unique access concentration all of its own. 

Edited