Existence

Existence is what exists. It does not include things which do not yet exist, such as potential realities. Existence is believed by objectivists to be anterior to consciousness. This means that consciousness (mind) is a part of existence, not the other way around; existence (reality) is not created by consciousness, according to their views.

An additional view that might well be compatible with this above view is the one that consciousness arises from existence (matter), and/or is a basic property of all existence, but is usually only fully realized or "activated" in higher sentient beings, such as humans.

A contrary set of viewpoints, mostly opposite of or incompatible with the above views, are the ones which assert the primacy of consciousness (mind). These are the idealist or anti-realist philosophies, including Platonism and subjectivism. Many of these are essentially solipism, only instead of positing that a mere mortal is the one true mind, they usually say that everything (existence) is actually one and the same as thoughts in the mind of God).