YES! You got the reference >:D
I imagine the Stance of the Thistle Seed to be like: One leg straight, toes pointed straight down, other foot hitched into the straight leg's knee. Elbows next to ribs, fingertips pressed against each other in a meditative pose.
I swear I saw it in a Wu Xia thing, but I can't recall the title.
RE: Challenge #04924-M175: Trust to Not Fall