The lesson, he said, may be that time and space are only illusions or approximations, emerging somehow from something more primitive and fundamental about nature...I like this. It allows for the view that the fundamental reality and nature of existence is that it is spiritual. This material, mortal, earthly perception of existence is an illusion and when we allow the influence of spiritual reality to come into our experience (the reality that Jesus Christ demonstrated - overcoming every human problem and limitation) we realize our true nature and existence as spiritual "children of God" - spiritual offspring of a spiritual Source.
Please note that the quote you cited ends with the words "something more primitive and fundamental about nature", where by 'nature' is meant 'the physical world'.
Yes. And I contend that the primitive and fundamental reality of the physical world is that it is illusion. It is the nature of human consciousness to draw firm conclusions from incomplete information and appearances. I call it "flat earth" thinking. Physical appearances have lead to incorrect conclusions about the nature of existence throughout human history. The more we learn about physics the more the illusionary nature of the physical world is revealed.