I remember drawing these all the time when I was a kid, but I never understood the meaning or significance until I got older…
“The ubiquitous yin-yang symbol holds its roots in Taoism/Daoism, a Chinese religion and philosophy.
“The yin, the dark swirl, is associated with shadows, femininity, and the trough of a wave; the yang, the light swirl, represents brightness, passion and growth.
“John Bellaimey explains why we all contain the spirit of yin and of yang — and how we can achieve a balance of both in our lives.
“Lesson by John Bellaimey, animation by TED-Ed.” – YT
Sounds like a good philosophy to adopt.