The Astral Plane

The Astral Plane is an impossibly large, unfathomably vast plane, which is believed to connect to every other plane in the multiverse.

Rumored to be infinite in scale.
Looks like a boundless, open sky, the color of pinkish-purple.
Filled with sporadic clouds of swirling, brightly-colored psychic vapor.
Distant arcs of light and dark energy occasionally cascade across the sky, like streaks of white and black lightning.
Everything appears to have a vague, silvery sheen applied to it.
Gives off a perpetual twilight, bright enough to read, but still much dimmer than daylight.
Known as “the swirling void”, or “boundless infinities”.
Air feels thicker than on most material planes, and has a vague scent of chocolate.
Subjective gravity for intelligent creatures, who can “choose” which direction to fall.