Swami Mukundananda
What is the highest form of seva: money, body or mind?
Mental seva is the highest
Service is done through the mind, the body and wealth, and the mind is the highest. Hold the thought of giving happiness to God and Guru and do your works with that intention.
The highest service is in the mind: to hold the thought, 'I wish to give happiness to God and Guru,' and with that intention to do your works.