ātmabhūtā vā śaktirādhīyeta, vyatiriktā vā, vyatiriktāvyatiriktā veti pakṣatrayam /
The power that is produced [must be] either (1) identical with [the organ's] nature, or (2) different [from it], or (3) both different and non-different [from it] - these are the three alternatives.