Bhagavad Gita Chapter 14.11
sarva-dvāreṣu dehe ’smin
prakāśa upajāyate
jñānaḿ yadā tadā vidyād
vivṛddhaḿ sattvam ity uta
Translation
The manifestations of the mode of goodness can be experienced when all the gates of the body are illuminated by knowledge.