REALITY
Reality is an odd beast that many philosophers have for millenia suspected to be simply an illusion.But until Quantum physics (and in particular the "2 Slit experiment) arrived - such nebulous suspicions remained just that. The 2 slit experiment proved that matter does not distill into actual MASS until it is observed. Prior to that moment all (that is ) remains energy waves or matter waves. Whilst this scientific discovery was a major breakthrough for science - Nobody then or now fully understands the mechanisms behind it.
REALITY MANIFESTATION
There is no doubt that the reality you experience is entirely of your own making. But understanding which part of "You" is creating that reality, is where the difficulty arises when attempts are made to alter the reality in which one exists. The elements of your personal make responsible for creating your reality are as follows:
YOUR SUBCONSCIOUS MIND
YOUR SUPER-CONSCIOUS MIND OR (HIGHER SELF /SOUL)
YOUR CONSCIOUS MIND ( WISHES V FEAR V BELIEF V EXPECTATION V ETC)