In oder to move around when we dance, we use our feet. While every type of dance have a basic step, displacement has a basic technique. In order to understand such application, it is important to understand your feet and how they work when you stand walk or run.
The more is understood about your feet, the more fascinating it becomes and with that, comes the fun of true dance exploration.
This video goes over the anatomy of the foot and how it works (what does what and when). Pay attention to the way the foot behaves depending on which muscle is flexing.