Here are a few ideas and inferences that stood out while listening to lesson 1:
When we ordinarily think and speak of things as “existing,” we don’t often notice that this is an over-simplification of a complex process of observation (disambiguation), perception, co-location and intuition over very limited sensory information, gathered from a particular orientation (i.e. given the dimensions humans percieve).
“You” (self) being the co-location of streams of sensory information
That we cannot honestly say that space and time “have” the dimensions we work in as human beings (up-down, left-right, near-far, past-present) – we must testify only that we perceive reality as having these