The body has an amazing capacity to store any unwanted emotional energy.
The moment we resist a life experience, part of what we don't want on an emotional level is stored in our bodies. In that sense, our bodies can act in a credit card in a way, storing any unwanted emotional energy until we are ready, at some later point in time, to experience this emotional "debt". And in so doing we free ourselves.
Our emotional pain can be the pathway to understanding and balance when accepted. Being present in the moment to all that arises gives us the strength and stillness to handle any situation that life brings our way.