Passive income

One of the ways to become financially independent is to generate income whilst you sleep, passive income. The idea is that you invest either some time or money into a certain idea or thing, and that will generate income for you without any further time or effort. This is how generally the super rich, got super rich. People only have a finite time in which to earn (governed by how much you stay awake) so if you can earn whilst you sleep or do something else, that is the dream of many people I'm sure.