The Purpose of Yoga: Spiritual Health. Indian culture and the Indian people, as a whole, are deeply spiritual. The benefits of good spiritual health should not be kept a secret. Bhakti is the most popular style of Yoga within India.
Prayer is when you talk to God. Meditation is when God talks to you. However, both can go together - as you sift away distractions while Praying and get to the stage of Concentration to what you are Praying about Meditation sets in.