I find it utterly intriguing and helpful to think about and question reality and what it might be; break it down in my head. For example, all that we actually see is light. We don't see actual stuff, we just see a limited range of light that comes from stuff, directly or indirectly. If you could somehow modify your eyes to see a larger range of light, so you might see ultraviolet and infrared wavelengths, you'd suddenly see the world as you have never seen it before, but as it has always been anyway.
Imagine being able to see micro and radio waves, x and gamma rays, and how that could and would change your overall perception of everything.
Your perception, mind, entire being would expand. Now imagine that same enhancement to your ears and sense of smell. Imagine you could taste colors, hear flavors and see sound. Imagine you could feel magnetism on your skin.
What I mean is that our senses are just filters to actual raw reality and all we get into our brains is just filtered reality and everything we know is bound to our limited perception. Thinking about that can greatly help against overrating everything we perceive and letting it weigh too heavily on us.
If you have a snappy mind, you can in one moment go 'oh, that person or object looks stunning' and immediately switch that to 'ah well, why give a fuck'.
Or how about that nothing actually possesses a color. Color is just what the brain makes from what it gets from the eyes.
What ends up in your brain as color is just how something reflects light. If grass were built slightly differently, it would reflect light differently, and it could look purple to us. Put some different gases up into the various 'spheres and the sky might be red. Have thinner eardrums and you'd hear stuff you've never heard before.
And this very obvious stuff is just scratching the surface of what we call reality, whereas going deeper would be about how perceiving everything that's outside our minds and that comes in through our senses makes us feel and think, makes us what and who and how we are.
One can reach absurd depths thinking about this, which might well be unique to us humans because without a doubt we have done absurd lengths to be what we are today. You could also de-construct yourself to a point where there's no doubt that we are all one and connected, which a lot of people regard as hippie bullshit. But you don't have to be some esoteric weirdo to think about such things.
Taking a step back is healthy for the mind.