Ramana's revelation may be termed as the 'Dahara Vidya' or Knowledge of the Heart.
The Heart is the centre of the Self and the Self is the Centre of centres. It is an observation of Ramana, who has clarified all aspects of this spiritual centre, in each and everyone.
"Just as the subtle force of electricity travels through wires and does many wonderful things, so too heart imparts sentience to the senses". Ramana would emphasize the need to 'have' rather than locate the experience.
A Special feature of this book is that the source material is exhaustive, since it covers eleven publications.