I would like to answer this in as short a response as possible. I will also attempt to simplify the terms for clarity.
Consider "Perception" as you "taking in" reality through all of your senses; your perceptions are different from others based on your personal beliefs.
Reality is created by you, your energy and the energies en-masse of all others; this has a grounding effect, in a sense by two primary causes; one, is your focus in on the "physical life" you have engauged in, the second in the energy used by you is massive, in this sense as it takes "all you have" to remain grounded in this reality;
this was not the original intent, but has become the exception.
Consider, time, solid substance of "Earth" the facade of your, our, reality as it is formed by you and I in agreement.
Beyond and into the 'afterlife" are countless realms of existence with endless that are ever growing.
This is the nature of reality.