I am pointing to the reality that it is our own thinking and internal misalignments (often in the form of judgemental thought patterns) that close the doors of perception and inner awareness - much of this is due to an absence of recognition of the value of carefully tending our own state of being.
It's important to understand that we are multi-dimensional beings and are essentially 'phase locked' into '3D' in a way that is not really for our highest good.
i agreed totally with your first paragraph. but i disagree with the second one. i think the most spiritual piece of this 3d life is the physical aspect of it. its a test plane.
Dense physicality is not how Earth is intended to be - it is the result of denial and emotional compression that is so ancient that few even realise it is all around them. Unconditional self acceptance is the foundation of the way to resolve much of the density and within that is a release of any sense of valuing being 'tested' or 'spiritual masters' etc.