Small bit of fitness trivia: each foot has 33 joints and 26 bones, which is why mindful grounding through the four corners can shift your whole alignment in tree pose. What other tiny-body facts help your cueing or practice?
I cue ‘short foot’ before tree — lightly doming the arch changes hip stability.
Building on @h_grace92, I use ‘big toe heavy, heel quiet’ in tree to anchor the medial line while still spreading through the four corners like you mention. Tiny-body fact: the hallux handles most of push-off, so that one-toe focus often cleans up knee drift without over-doming. If the arch starts gripping, I switch to ‘second toe long’ to soften while keeping balance.
I swear the toes do half the work with those 33 joints — my quick reset is a ‘toe fan’: lift all ten, spread, then plant pinky side first and big toe last before rooting through the ‘four corners’ in tree. Tiny caveat: if your big toe’s cranky, try leading with the second toe so you don’t claw. Anyone else notice the outer three toes calm the wobble more than the big one?
Quick cue I use in tree: with those 33 joints in mind, I gently roll the heel bone a hair outward until the talus feels like it ‘floats’ — my little reminder is ‘neutral heel, happy knee.’ If that feels cranky, I back off and add a soft knee bend to keep the hip easy.