k ah ▁( lit . ▁" step "), ▁a ▁set ▁of ▁struct ured ▁steps . ▁Lang k ah ▁consist ▁of ▁basic ▁foot work ▁and ▁k icks ▁made ▁to ▁teach ▁how ▁best ▁to ▁move ▁in ▁a ▁fight . ▁The ▁lang k ah ▁k uch ing ▁( cat ▁step ) ▁and ▁lang k ah ▁law an ▁( war rior ▁step ) ▁are ▁among ▁the ▁more ▁prominent ▁examples ▁of ▁lang k ah . ▁After ▁becoming ▁prof ic ient ▁at ▁lang k ah , ▁students ▁learn ▁foot work ▁patterns ▁or ▁tap ak ▁(" sole ") ▁from ▁which ▁to ▁apply ▁fighting ▁techniques . ▁Each ▁tap ak ▁takes ▁account ▁of ▁not ▁only ▁the ▁particular ▁move ▁being ▁used ▁but ▁also ▁the ▁potential ▁for ▁change ▁in ▁each ▁movement ▁and ▁action . ▁Among ▁the ▁most ▁common ▁form ations ▁are ▁tap ak ▁t iga , ▁tap ak ▁emp at ▁and ▁tap ak ▁lim a . ▁All ▁together , ▁the ▁st ances , ▁lang k ah , ▁and ▁tap ak ▁act ▁as ▁a ▁basis ▁for ▁forms - training . ▁ ▁Form s ▁Form s ▁or ▁jur us ▁are ▁a ▁series ▁of ▁pre arr anged ▁meta - mov ements ▁pract ised ▁as ▁a ▁single ▁set . ▁Their ▁main ▁function ▁is ▁to ▁pass ▁down ▁all ▁of ▁a ▁style ' s ▁techniques ▁and ▁combat ▁applications ▁in ▁an ▁organ ised ▁manner , ▁as ▁well ▁as ▁being ▁a ▁method ▁of ▁physical ▁condition ing ▁and ▁public ▁demonstr ation . ▁While ▁demonstr ating ▁a ▁form , ▁sil at ▁pract ition ers ▁often ▁use ▁the ▁open ▁hand ▁to ▁s lap ▁parts ▁of