sarvasya chāhaṁ hṛidi sanniviṣhṭo
mattaḥ smṛitir jñānam apohanaṁ cha
vedaiśh cha sarvair aham eva vedyo
vedānta-kṛid veda-vid eva chāham || 15||

My Understanding : Krishna says, “I am the reason for all your memories, forgetfulness, and knowledge. I am the Veda within you.”