Bhagavad Gita 18.63इति ते ज्ञानमाख्यातं गुह्याद्गुह्यतरं मया।विमृश्यैतदशेषेण यथेच्छसि तथा कुरु ॥

Thus has wisdom, more profound than all secrets, been declared to thee by Me. This teaching is well known as the Gita, the essence of all the Vedas. If anyone follows it and lives in the spirit of this teaching he will certainly attain supreme peace, highest knowledge and immortality. There is no doubt about this. I have revealed the mystery of this secret treasure to thee as thou art dear to Me, O Arjuna.It The teaching declared above. Reflect fully over everything that has been taught to thee.