La regola dello specchio

The metaphor feels so universal yet deeply rooted in Japanese cultural concepts. I'm curious about how this analogy was developed and why it resonates so much.

Some parts made me realize things about myself I wasn't ready to face, while others offered a sense of peace. How did others experience this emotional rollercoaster?

The blend of personal anecdotes and philosophy felt seamless, but I wonder what guided the selection process behind these specific concepts.