It's pretty much a fact that our entire universe is a mental construct. We don't actually deal with reality directly. We simply compose a picture of reality from what's going on in our retinas, in the timpani of our ears, and in our nerve endings.
Ideas, unlike solid structures, do not perish. They remain immortal, immaterial and everywhere, like all Divine things. Ideas are a golden, savage landscape that we wander unaware, without a map. Be careful: in the last analysis, reality may be exactly what we think it is.
LSD was an incredible experience. Not that I’m recommending it for anybody else; but for me it kind of – it hammered home to me that reality was not a fixed thing. That the reality that we saw about us every day was one reality, and a valid one – but that there were others, different perspectives where different things have meaning that were just as valid. That had a profound effect on me.
Look at him now, poor fellow. That's what a dose of reality does for you...Never touch the stuff myself, you understand. Find it gets in the way of the hallucinations.
The only reality we can ever truly know is that of our perceptions, our own consciousness, while that consciousness, and thus our entire reality, is made of nothing but signs and symbols. Nothing but language. Even God requires language before conceiving the Universe. See Genesis: “In the beginning was the Word.
The Here-and-Now demands attention, is more present to us. We dismiss the inner world of our ideas as less important, although most of our immediate physical reality originated only in the mind. The TV, sofa, clock and room, the whole civilisation that contains them once were nothing save ideas.
In an era of stress and anxiety, when the present seems unstable and the future unlikely, the natural response is to retreat and withdraw from reality, taking recourse either in fantasies of the future or in modified visions of a half-imagined past.
The entire universe - for one thing - only exists in your perceptions. That's all you're gonna see of it. To all practical intents and purposes this is purely some kind of lightshow that's being put on in the kind of neurons in our brain. The whole of reality.