"About our ultimate nature nothing can be said; it must be revealed." Adyashanti
What our essential nature is cannot be defined by words or truly described with the tools of this, our third density matrix awareness. Why is that? It is true because our essential nature is Spirit itself. It can only be revealed by us knocking on Spirit's door and being courageous enough to meet Spirit when it opens the door to us, to greet us, which it will.
How is this revealed to us? From my experiences, it is revealed through the higher realms of awareness and comes through to us from our psychic abilities, our intuition, our dreams and our meditations. Spirit does speak but it speaks in a non-linear language and you must be aware enough to know when Spirit is speaking to you. Also, many times, Spirit will reveal itself in the simplest of ways. It does not come like a thunderclap from the sky, although it comes many times in aha moments.
How dose Spirit speak? Again, from my experience, Spirit has come to me through divination, books, people, Angels, Archangels, Ascended Masters, channels, Goddesses, dreams, movies, TV shows, documentaries, visions, clairaudience, clairsentience, clairvoyance and clairecognizance. It is also in recognizing and accepting that I, myself, am Spirit and it is right here with me and not someplace else. I allow Spirit in.
It also comes in the form of a knowingness, a sense or feeling that, again, cannot be described or made sense of in our sensory world. The language of Spirit is metaphysical and mystical and it takes practice, dedication and willingness to learn how to commune with Spirit.
The best way to start is by developing honest curiosity about Spirit and to engage Spirit through meditation. Develop your intuition and be willing to open your heart to the ways of Spirit where it will reveal all to you.
This practice, I believe, is called loving Spirit which is loving your essential nature!!!