There are things. This is not a statement of fact, but a statement of what occurs. This initial confrontation is not with something called a mind, self, soul or spirit but with material things.
Space is inferred from the relationship of things. We cannot see or observe space. It is there by seeing the absence of something not occupying it. This is the only way we can know and understand space.
Time is inferred from the change in the relationship of things in space. Again, we cannot see or observe time. Its quality is known by the interaction of things in space.
The world is the entirety of things, space, and time. Even though things, space, and time are referred to as though they are three “things” they are whole, not separate. That is the nature, characteristic or quality of the world. We shall call it things/space/time or the world.
The world is reliable. It conforms to discretion. It is independent of experience. It is predictable.
The world is experienced. Although it is indirectly known the experience still shows us characteristics of reliability, discreteness, independence, and predictability. Furthermore, there is never a direct experience of things, since this is one quality of discretion.