Added 2 July 2020.
With reference to “the collective state of being” it may assist in one’s comprehension of what is meant/involved in “entering this ‘space’ ” let me say that it is, up to a point, like the process of osmosis where a membrane separates two liquids and that from the “heavier”* liquid passes through the membrane into the lighter liquid.
So it is with us as spirit: as we shed our Earthly needs and desires we lose our density (so to speak) and, eventually, are able to, and do, pass through the barrier separating us from our origin**.
* that having the lower density.
** The biblical “heaven”.