Confucius is attributed to saying we have two lives and the second one begins when realize there’s only one.

The problem with entering into this ‘second’ life is we still want to bring the baggage of the first life with us. The triumphs, pains, sorrows, regrets, attitudes, connections… all trying to root themselves in a place you don’t want them.

Guilt creeps in.
The mind uses the sunk-cost fallacy logic against you.
Your memories take on a rose-coloured tint.

But deep down, the truth is apparent:

You must leave it all behind.