We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.The Buddha
We live in two worlds. We suppose that there is an outer world of things, people, objects, places, sights, sounds, atoms and galaxies. The outer world is a very convincing idea, especially if you have just stubbed your toe!
However the only way we can know the outer world is through our senses and mental processes where our inner world meets the outer world. From the overwhelming flood of sensory data we sift and filter to construct a model, or representation of the world, so that we can make sense of it in the flickering magic lantern show of our consciousness.
It’s a very convincing show and usually we agree amongst ourselves that what we experience is really out there, occasionally we disagree and sometimes we even get it badly wrong.