Patanjali's yoga sutras

मूर्धज्योतिषि सिद्धदर्शनम् ॥ ३.३१ ॥

mūrdhajyotiṣi siddhadarśanam || 3.32 ||

murdha—of the head, the coronal

jyotiṣi—on the light

siddha—of the perfected ones

darśanam—the vision

Meditate on the celestial radiance of the third-eye chakra and the perfected ones will reveal themselves to you.