Main Theme in Reflection Passage

In the following excerpt from a fictional novel, the protagonist reflects on a transformative moment in their life:

"As I stood at the edge of the cliff, the waves crashing against the rocks below seemed to echo the turmoil within me. It was a moment suspended in time, where fear danced with hope. I had to decide whether to jump into the unknown or retreat back to the safety of the familiar. This moment defined me, as it revealed not only the depth of my courage but also the boundaries I had placed on myself throughout the years. When I finally took that leap, I understood that true freedom lies in embracing uncertainty, for in that chaos, I found myself anew."

Based on this passage, what is the main theme that emerges from the protagonist's reflection?