What is Genealogy? Core questions

Genealogy is about identity and the need to belong to a larger group.
Key questions are:
Who am I? What is my origin? How do I form part of the larger family tree of mankind? Where do I fit in?

One perspective – Bryson

“… you have also been extremely – make that miraculously – fortunate in your personal ancestry. Consider the fact that for 3.8 billion years, a period of time older than the Earth’s mountains and rivers and oceans, every one of your forebears on both sides has been attractive enough to find a mate, healthy enough to reproduce, and sufficiently blessed by fate and circumstances to live long enough to do so. Not one of your pertinent ancestors was squashed, devoured, drowned, starved, stuck fast, untimely wounded or otherwise deflected from its life’s quest of delivering a tiny charge of genetic material to the right partner at the right moment to perpetuate the only possible sequence of hereditary combinations that could result – eventually, astoundingly, and all too briefly – in you.”
“A short history of nearly everything”, Bill Bryson

Another perspective – Lewis

Human beings look separate because you see them walking about separately. But then we are so made that we can see only the present moment. If we could see the past, then of course it would look different. For there was a time when every man was part of his mother, and (earlier still) part of his father as well, and when they were part of his grandparents. If you could see humanity spread out in time, as God sees it, it would look like one single growing thing--rather like a very complicated tree. Every individual would appear connected with every other.
CS Lew