Low Stance Pushing Hands

My teacher mentioned that in the past, when he was learning pushing hands, they used to adopt very very low stances. He always likes to tell us that we are standing up too tall, that we need to "sit lower".

But adopting a low stance is not necessarily correct. The important thing about taiji is being able to relax and turn your kua. So even when adopting a low stance, you must not do so at the expense of not being able to relax and turn your kua. So while you may need to open your legs a little further apart to adopt a low stance, you must not open your legs so wide that you cannot move your kua at all. In fact, to correctly adopt a low stance, you space your legs just wide enough, and it is through relaxing your kua and thus sinking it down, are you able to adopt a low stance. And in doing so, you will find that you can turn your kua as well, instead of having a low stance but being unable to move much.