Investment is what you do with your time; It's where, when and how you build your capital; It determines what kind of capital you accumulate. If you invest all your time feeding the bottomless pit that is your physical desires rather than building capital, you will end up with nothing.

It is also not wise to invest in only one kind of capital. When and how much to build each form of capital is where wisdom is required.

This link describes several types of capital. https://www.indeed.com/career-advice/career-development/types-of-capitals