Astral Sea

In the world of Helia, the Astral Sea is the “space between” the planes of existence. The easiest way to enter the astral sea is by simply moving as high up as possible in the Prime Material Plane. Eventually, you would reach the Interloping Barrier, which separates the material plane and the astral sea. Every other plane has its own Interloping Barrier, but access is usually much harder than simply moving upwards.

The sea itself is a glossy blue-purple void with fragments of destroyed worlds and dead gods strewn about. There is no up, down, or any sense of direction, but objects are able to generate a gravitational pull much easier. This does not mean the pull is stronger necessarily, but only means that it will take less mass to have a gravitational field.