न वा, विशेषात् ॥ २१ ॥
na vā, viśeṣāt || 21 ||
na vā—Rather not; viśeṣāt—on account of difference.
21. Rather not (so) on account of the difference (of abode).
This Sutra refutes the view of the previous Sutra. Though the Vidya is one, still owing to difference in abodes the object of meditation becomes different; hence the different names. Therefore these cannot be exchanged or combined.