That makes no sense, every human being is a distinct and different creature and no two are the same.

You’re right, no two human bodies are the same, no two lives are the same, no two people have all the same memories/experiences, thus no two minds are the same.

But those are all physiological manifestations of the physical world, something that is changing and non-eternal. Your body will die, thus your mind, thus your memories/experiences, etc.

That is what’s called the “ego”, it’s an illusion of “self” within the physical world, and when you identify with it you become separated from your true self and other people.

Who you think is “you” as a person isn’t real. There is no “I”, there just “is” when you get past the ego.

If I were to take away all of your memories, your name and your senses you would still exist, but who you thought you were would be gone, you simply would just “be”. You would have no sense of “I”.

That is the “soul”, the “self”, “consciousness”, or “God”, whatever you want to call it.

Your true self is formless, exists both in and outside the physical world, always has been always will be, and all things arise from it.

“Out beyond ideas of wrongdoing and rightdoing there is a field. I'll meet you there. When the soul lies down in that grass the world is too full to talk about.”

Here is a neat video explaining it:

https://youtu.be/Em3XplqnoF4?t=69

You can ignore the transcendental meditation part, while that can work it isn’t the only method.