Relatively speaking, maya is neither existent nor non-existent. From the absolute point of view, there is no maya. That’s why it’s said that maya is unborn but not eternal.
There’s not much of a difference between believing in santa claus, god, or the theory of everything. It’s not about the subjects of belief but belief itself. Go ask maya.
If the brain appears in consciousness, it can never figure out the holistic bliss infinity of pure consciousness. Thus it has to believe consciousness appears in the brain. There’s too much money at risk.
Is materialist nonduality a thing? Is that what a zen slap is? Knocking the materialism out of the disciple? First things first. My zen slap was my mirror image. Tomorrow is its anniversary.
The mind is an island in the sea of consciousness. Consciousness is a reflection in the subtle body of the buddhi. The buddhi is organic and transparent maya. The source of the reflection is intelligent awareness. Tattvamasi.
Maya is much like a shadow. It’s not real but it’s certainly not nothing. And in the full light of atman it’s just not there.