Welcome to the nexus brother! Great to hear that you have taken brave steps in the quest for truth.

I sometimes wonder if the mind repeatedly imagines "higher worlds" at every stage of it's evolution thus leading to it's movement to different worlds. Similar to your idea that the subconscious tunes into frequencies which is aligned to it's internal belief system. I am not too fond of the term "higher world", as it implies that we are living in a "lower world". I prefer the term "alternate realities". (it's hard to objectively compare universes within the multiverse, they are aspects of the same thing ;-))