It is not something that you can buy. If you spend all day working on earning money, you leave an essential part of life out. That is relationships.
If I purchase a new camera all, I am rushed with this feeling of happiness or joy. After a while, that feeling fades away.
We can have security through healthcare. If something happens to our body, our healthcare can take care of this.
This is probably the greatest thing that money can buy. With this freedom, you can enjoy life and be happy through the freedom that life gives us.
With financial freedom, we can use our money to enjoy life through experiences. Experiences give us something that stuff and things cannot.