From the introduction:
You once again step into a world all too similar to the one you originally came from. A world of darkness. Within its shadows there dwell things that mortal man was never meant to know. Vampires, changelings and now... mages. Scions of the ancient empire of Atlantis, these people have “Awakened” from the lie, have crossed a vast and ever widening abyss to the realms supernal and returned to tell the tale. Just as Plato declared, the world we see is but a shadow of a truer, more pure world of raw ideals and truths. The supernal realms are that truth. Mages, by making the journey and signing their name to a watchtower, establish a sympathetic connection, allowing them to draw down the supernal truths to the fallen world...at least for a while.