One of my greatest learning experience is once I really realized your inner world is a reflection of your outer world.
I just gotta touch this before I go off to sleep, er other worlds...The 'outer world' is the collective reflection of many an 'inner world' of those who passed before us (in time).
The whole universe+ is within.
All things first unfold within and then get reflected 'out'.
The 'outer worlds' are projections, the 'inner worlds' the constant truth.
And lastly...
'The Kingdom of Heaven is within'...