The concept of 'Fuck You Money' has grown close to my heart over the years. Not in an arrogant way but the sense of freedom and liveliness an amount of money can bring where you are simply much above meagre daily life affairs which you know will be met by default. You know that you will be okay somehow and things are bound to work out anyhow.
I am still chasing that number though but I love the concept.
The following link provides a good insight into the F U Money concept: https://italkaboutmoney.com/fuck-you-money-the-different-levels/