My main mentor is a big critical thinker and has taught me to question everything, for example:
Why use a particular cue?
Is that reason validated by modern movement science?
Is the cue necessary?
There are a few outdated yoga cues, often passed down from teacher to teacher (and occasionally layered in emotionally-sensitive dogma) with no substantiated reasoning to back it up.
For example, the familiar "avoid the knee in tree pose" cue.
Below is a short tutorial on my thoughts...