Generally, people understand that everything is consciousness and that consciousness using pre-determined patterns known as quanta create what’s seems to be physical - items such as humans, plants, cups, rocks, water, and so on, for example. This means within the matrix everything looks and acts as it's designed to.
This is known as your physical reality. There is an astral component to all life on all planets, stars, and moons and so surrounding this planet is an astral realm and this is a compilation of all thoughts that ever existed.
Then we have the spirit realm, and this space is where departed loved ones exist and experience that specific point of reality as nonphysical entities (so it's said). Now of course some may say that the spirits in the spirit realm sense themselves as 'solid', and so they should (if they choose to). This solid existence is also an illusion, just as being here on this planet is as well.
So, we have consciousness extending itself from the void (which I call Annorians, but some may call God or Source) creating an experience for itself via quanta in dualistic forms and experiences.
Interdimensional races also experience themselves as well in forms they understand and although it is possible to call them “physical in their own space” maybe it's time to remove the word physical from the conversation and replace it with ‘’exists’’.
Example: Humans exist here on this planet.
Spirits exist in their own spaces and understand themselves according to their own free will.
The Astral beings and thought forms also exist in their space and experience themselves as they wish.
Interdimensional beings exist in their specific reality and know themselves in their own forms.
Races of ET exist on planets and are defined by their existence and consciousness.
This terminology now removes the stigma of something being either /or physical or nonphysical, and also removes the limiting thought patterns we all can have.
So, with this new understanding of what is, we can now move forward and understand that if you wish to Heterodyne that you must move to a space where both beings exist simultaneously.
If you wish to move to the spirit realm, Astral, Races, and interdimensional spaces, you must forget for that moment that you are a “physical being” and understand that you may move easier through contact scenarios by thinking about ‘’existing’’.