Patanjali Yoga Sutra 3.33

Sanskrit Sutra

मूर्धज्योतिषि सिद्धदर्शनम्॥३३॥

Swami Vivekananda's translation

On the light emanating from the top of the head, sight of the Siddhas.

Vyasa Bhashya (Sanskrit)

शिरःकपालेऽन्तश्छिद्रं प्रभास्वरं ज्योतिस्तत्र संयमं कृत्वा सिद्धानां द्यावापृथिव्योरन्तरालचारिणां दर्शनम् ॥ ३२ ॥

Vyasa Bhashya (English Translation)

There is an aperture inside the skull of the head, [wherein shines] a radiant light. By making Samyama there, one gains a vision of the perfected beings (Siddhas) who roam in the space between heaven and earth. || 32 ||

Chapter link: Yoga Sutra Chapter 3