The Terrestrial Realm, metaphysically, is the core of the Fracture. It is in this realm that animals, plants, and other physical beings dwell. Though the terrain of the Terrestrial Realm may vary, the rules and concepts remain static, as only powerful magic can change or alter its metaphysical structure. Barring a few exceptions, most travelers find this realm the most ‘normal’, and many will only ever leave it upon their death.
Travel to and from the Terrestrial Realm is more simple than the other domains. Those who are empathic can see into the Spirit Realm from the Terrestrial, and in some cases, transfer their being between them with magical aid. Greater workings, powerful portals, or technomatic items can open semi-permanent doors from the Terrestrial Realm into the Spiritual or Death Realms. Connections to the Celestial realm, however, are much more difficult to manage.
Though this realm is the most ‘real’ in terms of tactile sensations, it is not without it’s fluctuations. The Fracture, and the Celestial Gardener, can manipulate this terrain in large swaths, shifting rivers and forests to suit their grand scheme. For many years, these changes kept the more powerful and horrible denizens of the Fracture away from those new to the world, so that the settlers could survive long enough to truly realize their plight. Those that thought they were venturing to distant lands may have, in fact, simply been gently guided towards already explored areas. As such, much of the Terrestrial Realm remains unexplored and undiscovered.