6 and 9 are the same shape, but is 6 an upside down 9, or is 9 an upside down 6? Or maybe I’m upside down and that 6 sure looks like a 9.

That’s not too far from the idea of yin and Yang.

Or perhaps it’s the idea of a single thing being two things at once, which it often how life can feel when there is a significant change. I’m still the same me, yet I’m forever changed.

Then there’s the Jimi Hendrix song, If 6 was 9, which ultimately is about living life on you own terms.