Those gurus who indulge in head-and-heart games keep you in a prison of emotions. The emotion belongs to ignorance.+

The Self is not within the human heart. The world in which you exist hides the Soul, which is the spiritual heart.

Those Gurus who are stuck up with the head and heart game will not be able to unfold the mystery of their true existence.

When you realize the Self is not the body then the question of the Self is within the heart does not arise. The poets use the word heart to indicate the center of existence.

When the whole universe is created out of the Soul, the Self, which is present in the form of the consciousness still you are thinking the Self is within the human heart you are not a wise seeker.

Those Gurus who indulge in head and heart-games keep you in the prison of emotions. The emotion belongs to ignorance.

Some gurus propagate the Nadi you refer to is called Amrita Nadi. It connects the Spiritual Heart with the Sahasrara. It is best to merge in the Heart and then see that the Heart is beyond time and space.

But remember:~

When the ‘Self’ is not the body then the question of the Nadi or Amrita Nadi or Sahasrara does not arise. Until we think the ‘Self’ is within the body it is impossible to cross the threshold of dualistic illusion. Deeper self-search reveals that the ‘Self’ is not the body why bring Nadi, the chakras when they are part and parcel of the body.

Deeper self-search reveals that the ‘Self’ is neither the body nor the ‘I’. Thus, one has to go beyond the ‘I’ means beyond the form, time, and space. : ~ Santthosh Kumaar