। ॥
In plain words
Kumbhaka, the web of mantras, and holding practices such as prāṇāyāma: none of all this is to be done by one who longs for imperishable liberation.
Word for word
Kumbhaka and the web of mantras, holding practices, prāṇāyāma and the like: all this is not to be done by one who longs for liberation imperishable.