Understanding the Theme of Resilience

In the following passage, the author discusses the concept of resilience in the face of adversity. The argument progresses from personal anecdotes to broader societal implications.

Resilience is not merely reacting to difficult circumstances; it is a proactive approach to life’s challenges. As a child, I frequently faced setbacks—missed goals in sports, academic failures, and social rejections. Each experience taught me that a setback is not the end of the road but rather a detour towards personal growth. This realization led me to embrace challenges rather than avoid them, which is essential for cultivating resilience. However, when looking at resilience on a societal scale, we see it's equally vital. Communities that foster a culture of resilience are more likely to recover from disasters, economic downturns, or social injustices.

Based on this passage, what is the central theme that the author is conveying regarding resilience?