Often what happens in those situations, when we find space and motion in our bodies that we didn't know we had, we have an emotional breakthrough too. Different schools of study have found that we hold on to emotional memory in different parts of our body. We don't stretch it out if we don't want to go there. When we stretch it out we find ourselves experiencing more.
I can imagine my body free from all the blocks I pretend I have: capable to move in any direction, fast, strong. If I can do that, I realize there is a possibility to imagine my emotional self that way: capable of moving through different stages and ways of feeling and work with them and use these different emotions with skill and care. Skillful the same way a talented athlete hones their strength toward precision.
If I can imagine it, then it's a possibility for me. More range, more options of how I feel and react. More types of strength to meet more types of situations.