This document discusses different types of changes: cyclic changes like the seasons that follow natural rhythms established by God, and non-cyclic changes like unexpected life events. It notes how God created order and rhythms to govern life on Earth, like the cycles of day and night, growth and reproduction in plants and animals. The rhythms of a human life include stages like childhood, youth, adulthood, and old age. While these rhythms are same for all, how each person experiences them differs. In addition to cyclic changes, people face non-cyclic changes like unexpected losses, transitions between life stages, and interactions with others that shape their lives in various ways.