They range from the eccentric "plant your hand firmly on the ground, like someone has just pounded a nail through it" to the airy "pretend that you're leaning your neck against a cosmic pillow".
But tonight, our instructor Sheryl took the prize.
In describing the perineum, she said nothing other than:
"It's the tiny muscle between the fertilizer and the flower."
Playful tone, no irony. It was like being in Grade 5 sex ed. all over again. I loved it.
I would have applauded but it's hard in downward dog.