They can be used to highlight key moments. 'When one door closes, another opens' was true when I moved from my hometown. It was sad to leave, but it opened up a world of new experiences, education, and relationships in a new city. This saying captures that transition well in my life story.
Sayings can also give meaning to the overall arc of my life. 'No pain, no gain' has been a constant in my life. I've faced challenges like studying for difficult exams or training for sports events. Each time, the effort and pain I put in led to gains, whether it was knowledge, a sense of accomplishment, or a healthier body. This saying helps to explain how I've grown and developed over time.