Verse
सर्वद्वारेषु देहेऽस्मिन् प्रकाश उपजायते ।ज्ञानं यदा तदा विद्याद् विवृद्धं सत्त्वमित्युत ॥
When into all the doors in the body there comes a flooding of light, a light of understanding, perception and knowledge, one should understand that there has been a great increase and uprising of the sattwic guna in the nature.
Gītā 14·11