Take a look at these batteries.
Both have a positive terminal (top) and a negative terminal (bottom).
On their own they do absolutely nothing, and yet they are filled with potential, which in this case is a stored charge of electrical energy.
When we join these two polarities with a lead, switch or other means, we have the opportunity in the case of a torch for example, to create light.
Now imagine if you will, you are the switch connecting the positive and negative energies of life (Duality), which is filled with potential just waiting to be activated.
Be the switch you wish to see in your world (with apologies to Mahatma Gandhi for bastardising his famous quote!)