You create a thing. An idea. A thought. A dream. An action.
That is all “you” do. You engage in a single act of creation of a thought, and you drop it into the machinery of your mind.
At that point your mind engages. The Chita, as the Vedic Sutras call it. The mind slices and dices that command and idea. Usually it mangles it. That is the machinery of which we speak.
But the idea is pure and comes from a place beyond our universe, don’t you see? If the idea is new, it was, by definition, not in existence before.
This breaks the laws of entropy. This idea introduces complexity into a universe that thermodynamics demand be simplifying. Perhaps it was glucose and energy and electrical bonds moving about that provided the energy for its creation. Perhaps all of science was correct in how the idea came to be plucked from nowhere, constructed anew, and recorded in this fixed medium where it could be transmitted to other “you”s.
But the idea, itself, is new. It exists in an interconnected skein of ideas that, at their lowest level, are the strands of your thought. You can take actions and transmit this idea to others where it will survive and morph even when your body has gone.
That is the second universe. The real universe in which “you” exist. This place where thought can be generated and actions begun. It is more ephemeral and harder to ‘see’, but it is as real as rock and steel.
Isn’t your fear (or acceptance) of death centered on the uncomfortable idea that you won’t exist?