Blowing your mind. I recommend it. How to do it? Pay attention. Or meditate. Just look. And think. Take it in. Without filtering. Just let it all come in. You will be sure to blow your mind often. It's probably a good, necessary, thing.
The inner world can send you reeling. Sit quietly. And breathe. And let the images emerge and fly by. No telling what can happen. No telling what you will see, think, feel. There are immensities inside us. Universes, just waiting to be discovered and unleashed.
Same with the outer world. Check out the immensities of time and space. Think about the beginning of the universe. Think about the long sequence of time. Think millions and billions of years. Quite daunting. And then the outer reaches of our universe. How many billions of galaxies? I am always amazed how science, by revealing more and more secrets of the universe, actually increases the mystery of our existence.
The more we "explain," the less we seem to really know or understand. Isn't that a kick? The latest from those wacky scientists? "A pair of super-massive black holes appear to be spiraling toward a cosmic collision of unimaginable scale..." Don't worry. It's a long ways away.
And I just love it when those wacky dudes talk like mystics and poets: "... even billions of suns squatting like Dante's Lucifer in the center of every galaxy." Well sure, of course, why not?