“You've seen the sun flatten and take strange shapes just before it sinks in the ocean. Do you have to tell yourself every time that it's an illusion caused by atmospheric dust and light distorted by the sea, or do you simply enjoy the beauty of it?”
John Steinbeck, Sweet Thursday.
There is a lot of psychobabble about illusion and reality. Most of it supposes the reality some guru is offering is less illusory than other realities. Enjoying a sunset is always a good thing to do, no matter which reality you choose. Beauty is a truth unto itself. You don't need a self help book to know and feel beauty.