It would be interesting to explore this with you more, Graham. I understand the main point, I believe, which is what Kastrup teaches. While he says mind is the ontological primitive or the foundational underpinning, I don't believe he concludes there are no distinctions between things we experience, nor that the disturbances in the flow of mind we consider particles or matter aren't in some sense "real." Even if we say it is all energy or waves in the liquid sea of mind, we still distinguish between things (experience of things) that are alive and that are not alive. Life means self-reproduction, conversion of energy to sustain life, genetics, DNA and all that. Non life does not include these things. You seem to suggest that consciousness is life. How does that work under the definition of life? It seems consciousness as we experience it anyway is in some way dependent on the material stuff in order to have experience. I've never been able to figure out how pure consciousness without something we consider physical can operate outside of its own mental place, as in how one could relate to each other without some kind of substance to sense and experience. Your thoughts?