Dear B The traditional Ch’an answer is that the only concern for a Ch’an Teacher is that the Student or Dosciple directly perceives the empty mind ground at all times –
I am light, I am light slowed down… I am congealed light, I am light as plasma. I am light as consciousness, I am light
There is so much mystery to be understood in the material world, that inventing other realities is not necessary. We, as a species have perceived the atom, peered inside it and realised its ethereal nature.