Does consciousness require a functional human brain to be aware of itself?

I’m currently reading the German edition of your book The Transparency of Things. I have one question in my mind, which I even asked Eckhart Tolle but didn’t get an answer. I think he gets too many question to answer them all. Maybe I will have more luck asking you. If the subject, I, mind/body, has the experience of an object, which, as you expressed in your book, is an illusion because subject and object are the same pure consciousness, what happens if there is a physical defect preventing this experience? Whatever is experienced is experienced by consciousness. A so-called normal person, a blind person, a person with Alzheimer’s, a dog, an ant, a bird, a flea…whatever is known or experienced by each of these creatures is known or experienced by consciousness. In other words, a person does not know; it is known. <a href="https://medium.com/@rupert_spira/does-consciousness-require-a-functional-human-brain-to-be-aware-of-itself-24057ddaba25">Click Here</a>