Remember "Multiplicity" with Michael Keaton? Remember the first clone? Number one? He felt like he was the original guy who had a wife and kids. He felt like he had lived a lifetime even though he was only a few minutes old. And then he was introduced to the original and told that he was only a replica. He looked at the scientist in shock and disbelief. Why? Because he had the same memories of experience as the original. How? Because as a clone he had the same neurophysiology.
We are like the clone in some ways. Remember when you were a little kid? Well, you are not that kid and never were. You, as a union of new cells, are the substitute. You are not the same person as the kid. Every cell has been replaced since. You only feel like you were that kid because long term memory has been retained within the physiological 'stencil'.
So next time your mum mollycoddles you and gives you the "you're my baby" excuse, you can tell her this in its most literal sense: "No, I'm not." The truth is that that kid is dead. His cells are long gone. In fact you don't even need to go that far. A couple of years ago is probably enough time for a person to change completely (don't quote me on it as I'm not a biologist and I'm not sure how long it takes us to metabolise).
Anyway, you get the point. The "I" seems to arise as a consequential illusion from retained memory. As Chandrakirti says in Guide To The Middle Way, the self is like a cart. It's not other than its parts, not non-other, it's not within the parts, the parts are not within it, not the mere collection, and not the shape etc. (you know how it goes).
This is all very David Hume. You cannot describe any object without mentioning its properties. Try that with something as simple as an apple. You can't. It's beautiful and we are no different.[ Post made via Android ]