Compassion the Spirit of Truth: A study of the Immutable Law of Universal Sympathy and Sacrifice, and Its mutable facets, Worldly Love or Selfishness and Devotional Love or Bhakti, integrating the ethical precepts of the Bhagavad-Gita, Light on the Path, Narada Bhakti Sutra, Voice of the Silence, and other manuals of initiation, with their metaphysical roots in the Secret Doctrine of the Heart.