Couple of thoughts: 1. Multiverse... I dont go for the modern mathematical physics version; but in the esoteric traditions we already have a multiverse; in the sense of multiple dimensions or realms of existence. After death we transit to another dimension of existence; you could call it a parallel universe. Acording to the traditions there are multiple levels beyond the Earth realm. 2.Time... is an experience...but not thereby an illusion. IMO what we call time is the experience (awareness of) process or change; and of course requires a memory system to create the sense of duration. Without memory there would only be the present moment; and no sense of duration; nor of personal self. Because experience may function differently in different realms, our experince of time or process in different realms may also be different. I believe this may in part account for the sometimes confusing statements about time made by NDEs and out-of-body travellers.