From Wikipedia
Forms or taolu (Chinese: 套路; pinyin: tàolù) in Chinese are series of predetermined movements combined so they can be practiced as a continuous set of movements.
… contained both literal, representative and exercise-oriented forms of applicable techniques that students could extract, test, and train …
… Forms gradually build up a practitioner’s flexibility, internal and external strength, speed and stamina, and they teach balance and coordination. ,,, forms that use [tools] of various lengths and types, using one or two hands.
… Forms are meant to be both practical, usable, and applicable as well as to promote fluid motion, meditation, flexibility, balance, and coordination.
… “train your form as if you were sparring and spar as if it were a form.”