You may think you know who you are, but that would be a thought of yourself.
You may think you know your universe, but that would be a thought of your universe.
You and your universe, as well as thoughts of yourself and your universe, are all waves of the same ocean.
Fully realize that your thinking mind cannot know either yourself or your universe.
Become aware without knowing and realize you were never separate from your universe.
This separation was only in your mind.