You think existence is a delusion?
Strawman. No, I think your assessment of "existence" not requiring and entailing a believing mind in order to exist and occur "is a delusion".
Who said anything about object permanence? Are you confusing different threads? I asked you to explain why you think existence requires a mind. Why can't you ever do that without getting confused and talking about knowledge instead?
So, does this mean that you have given up on "object permanence" as a means to make the unknowable known to you?