Practicing the traditional Wu Style Tai Chi form (108 movemetns) should take about 15-20 minutes.
But sometimes when I’m in a rush or not concentrating I end up practicing for less than 15 minutes.
When this happens I concentrate on occasionally saying the phrase ‘hardly moving’ to myself which slows me down considerably.
My body, arm amd leg movements barely move which is what I want to happen.
It’s really a mind game to remind myself to slow the form down.
And I suppose it doen’t matter what word or phrase you use as long as the duration of your Tai Chi form is not below 15 minutes – preferably 20 or more minutes.
When I practice the form for around 20 minutes I notice there is a deeper sense of relaxation as opposed to practicing for less than 15 minutes.
I know how long I practice for by setting an electronic clock. Each practice I record the length of time to see if I’m consistently around the 20 minute mark.
If not, then it’s time to hardly move.