When we first saw our later Sifu in person he demonstrated us the Fut Sao form. At that time (and for years after) we did not understand the real meaning and importance of this form (either).
Later when we became his students, he has not taught this form to us for many years although occasionally we have seen him performing it. Then we have learnt it and started to practice …. the movements.
Fut Sao is difficult to perform not because it is a high-level form (we don’t believe there is any of this kind), but because you should realize what the driving force is behind and then you can also realize what you really practice is this, not the movements.
This form is especially good for testing yourself, gaining feedback about the small internal actions and also refining your power (if you have it).
At the beginning you will be overwhelmed by the movements but later you will enjoy plunging into the depths of the matter. Fut Sao also improves the stamina of your internal power.