The heart of knowledge is the knowledge of the heart by Chaitanya Charan Das Based on Bhagavad Gita Chapter 18.

Towards the end of the Bhagavad-gita (18.64), Krishna announces that he will share the most confidential knowledge (sarva guhyatama).

Confidential knowledge (guhya) refers to the knowledge of our actual identity as souls, knowledge that is unknown to most people. Krishna shares this knowledge in the Gita’s second chapter.

More confidential knowledge (guhya-tara) refers to the knowledge of the various processes for realizing the soul. This knowledge is more confidential because proper processes for self-realization are known only to a few among those who know about the soul. Krishna shares this knowledge from the second to the eighteenth chapters.

The most confidential knowledge is the knowledge of the best path for self-realization, bhakti-yoga. Krishna, after having shared it earlier, especially in the ninth chapter, emphatically repeats it in the Gita’s next two verses (18.65-66). Why is this knowledge the most confidential?

Let’s consider three reasons.

 Bhakti-yoga infuses our spiritual quest with the energy of love, our heart’s strongest and purest emotion, and the even greater energy of Krishna’s omnipotent mercy.

Firstly, it activates the innermost core of our being, the heart, which in its pure state expresses the divine emotions of the soul. In the pursuit of transcendence, karma-yoga engages primarily the body; jnana-yoga, primarily the intelligence; and dhyana-yoga, primarily the mind. But bhakti-yoga, by triggering the heart’s latent transcendental emotions, engages our entire being, because body, mind and intelligence all ultimately follow the heart.

Secondly, bhakti-yoga takes us beyond the impersonal Brahman and the neutral Supersoul to the all-loving Supreme Person, Krishna – the rarely realized zenith of transcendence.

Thirdly, bhakti-yoga stimulates the innermost human and divine emotions. It infuses our spiritual quest with the energy of love, our heart’s strongest and purest emotion, and the even greater energy of Krishna’s omnipotent mercy.

Thus the heart of knowledge – the most confidential knowledge – is the knowledge of the heart, the knowledge of establishing the most intense heart-to-heart connection between the human heart and the divine heart.