I was familiar with this, but never read.
And, so, reading, a curious book that quotes Eddington & H. G. Wells, the premise of which is that time is an illusion created by our focusing our waking attention too narrowly at a "spot" in our existence; and that as we move our attention forward the illusion of time is created. He argues that while sleeping our focus is lessened, and so what we experience as dreams are as much a view of the future - if we would recollect them - as they are of the past.
Some curious ideas within, and - a hundred years later, many of his ideas find their echo in contemporary physics. Some interesting thoughts to assimilate and consider.