What is the relationship between faith (Bhava), love (Prema), and knowledge, and which is considered most important for a devotee's spiritual progress?

Chapter 48 presents a clear hierarchy and relationship between these concepts. It states that love does not arise without faith, and 'where there is faith, there is God.' Love is described as being 'fully present in the womb of faith,' indicating that faith is the essential foundation. Love, in turn, is presented as paramount for spiritual life, with the text noting that devotion, peace, and detachment dwell where there is love. Knowledge without love is described as 'dry' and useless. Therefore, while all are related, faith is the root cause that enables the all-important quality of love to blossom in a devotee.