While in Yoga, the Supreme Soul shows itself in the Yogin's heart like a burning fire, or like the bright Sun or like the lightning's spark in the firmament.
विधूम इव सप्तार्चिरादित्य इव रश्मिमान्। वैद्युतोऽग्निरिवाकाशे दृश्यतेऽऽत्मा तथाऽऽत्मनि॥