As a well spent day brings happy sleep, so life well used brings happy death.– Leonardo da Vinci
How does one live a life well lived? Different people want different things. It could mean enjoying life to the fullest, finding a purpose and fulfilling it, or living with kindness and integrity. Not lying down at the end, saying this or that is a regret.
Ultimately, it is up to the individual to decide how to use their life well.