"Bhakti Yoga became progressively more important for me. Its value can be described with a simple metaphor: knowledge (jnana) is the flame and the mind is the wick, but bhakti is the oil. Without bhakti spiritual knowledge burns out the mind, like a flame does a wick without oil. I discovered that the Vedas are primarily books on Bhakti Yoga, quite contrary to a modern scholarly belief that Bhakti Yoga originated from a later Islamic or Christian influence in medieval India."