This is a large one, so take care not to get lost in the details.  .

First, layered just beyond the physical world in the Ethereal Plane, a gray realm in which one moves by force of will.  Mortals can only step this realm by way of magic, but you may well encounter creatures that haven’t such a need, creatures who can seemingly wink from existence and reappear a hundred feet off in the blink of an eye. 

Next, there’s the Astral Plane, a realm with no physical dimension, a spiritual plane of existence through which the soul can travel a vast distance in the skin of an instant. Again, only through magic - powerful magic in this case - can mortals step the astral sphere.

Then there’s the Mercurial Plane, a realm through which the body can travel at nearly astral speeds. This is a Greater Plane, one not readily accessed except by those of semidivine blood. An exception to this caveat - a number of powerful familiars can travel the Mercury with their witches in tow.

Now, while we’re discussing the Greater planes, let’s run through a couple of which you may have already heard.  Asgard, of course, is the realm of Odin and his fellow Aesir Lords.  Here stands the Hall of Valhalla, where the fallen warriors practice the craft of war every day, preparing for the moment that Heimdall sounds his horn, announcing that the Battle of Ragnarok is underway.  Then there’s Jotunheim, the realm of divine giants, where Loki the Trickster holds sway. We’ve Alfheim, where the few remaining faeries dwell; the watery Abyss, Lilith’s realm; the elemental planes, including the aerial one, where Greyl sits her throne as Queen of the Witches Coven . . .

But again, I’d not have you get mired in the details.  What matters most is that you understand there are realms beyond the mortal one, realms which are entirely real despite their metaphysical nature. Now, let’s get back to exploring Alvidan . . .

 Recreation of the Gods