Owning a house, for instance. Having a solid job or a good resume so you can always find a job if you don't like your first, or own your own business that does well so you cannot lose your job and can live freely. Connections so that your business (or job quest) has a good chance of getting good results. A good income stream so you don't run out of money.

A lot of it is centered around money, such is our society.

A lot of things are fleeting, so it is important to also live in a country where the government won't take everything away from you because they don't like your opinion, or living in a country where war is less likely. (There are ways to mitigate these risks).