When two people encounter one another, two Universes come into contact.
World’s collide.
All that the Universe is to me, exists entirely in my mind’s rendering of the cosmos. Every star I have ever experienced seeing, I have seen in my mind. Every picture of a galaxy that I have seen, has been comprehended in my mind. My eyes provide mere digital nerve pulses, but it is my mind that renders the glorious image, and comprehends the immensity.
Every person I have ever interacted with, my mind has rendered and reified, along with a model of what I would be like, if I too were a person. There is literally nothing I have ever seen, or concept that I have ever understood, that exists outside my own mind.
All that the Universe is to you, exists entirely in your mind’s rendering of the cosmos too.
In this sense every sentient being is an Island Universe in the Multiverse of Consciousness.
When we interact, it is an encounter between worlds, a cosmic encounter. Your world enters mine, and mine enters yours.