The Dimensions are very interesting to view when viewed from a place of separation from them.
They all exist now and you might imagine them as overlays or spheres of consciousness “worlds” as realities that interface and penetrate the very fabric of the here and now.
Many Beings are here on Planet Earth in the so-called 3D World ~ yet consciously exist in the higher Dimensions.
These sphere of consciousness are ALL consciously ACCESSED when you live through your Higher God Self ~ Union.
That is ~ with no awareness of SEPARATION.
You exist in that state now ~ not consciously in your vibrating form of light that you perceive as solid.
The Process of Ascension with the YOU as your conscious awareness now with your Original Light which aligns you with all the dimensions you exist in and AS ~ with the merging and Union within the consciousness that inhabits your form.