Yoga Sutra 3.25 supernormal radiant perception

Sūtra III.25

By projecting the light of supernormal radiant perception (I.36) on to what is subtle, hidden or remote, (he comes to) knowledge of that

The supernormal perception referred to is the one called Radiant, and when the yogin projects focuses its light a ray of it on to something subtle or hidden or remote, he discovers it.