Belief systems are ephemeral…
Belief systems are ephemeral and have a self-reinforcing component. This self-reinforcing characteristic allows you to experience the sustained reality of that belief system because it is constantly being chosen second to second. It is a type of momentum going in one direction and inspires you to act and select the same way in the next moment.
In other words, you are creating a new reality each and every moment. It is based on the perpetuation mechanism of your belief system, positive or negative, that looks similar to the reality you created a moment ago. – Rico Roho