। ॥ २०७ ॥
In plain words
If you want the main practice to come through, you must take up its auxiliary — that is not optional. Strip away the limb, and the main thing simply does not come through at all.
Close to the Sanskrit
For a person, for the sake of the accomplishment of the principal, recourse to the auxiliary is certainly to be undertaken; if the principal is bereft of its auxiliary, it is not accomplished at all.