Reality is defined as that which endures without constant reinforcement by the Mind. Truth is defined as a description of that reality.

It is important to our survival to be able to discern qualitative differences between one location in the environment and another.

This is Perception. The phenomenon of attention causes an exaggerated sense of isolation between entities in the environment. An appreciation of the whole is lost. Because the isolation of entities from one another is exaggerated by Perception the isolation is, in reality, less than what we experience. Perception is a problem.

"Count Your Breath"