Indian man: Śrīla Prabhupāda, I have one question. What is the purpose of service minus devotion?
Prabhupāda: Hmm? That is not service; that is business. (laughter) Just like we have employed some contractor. That is not service; that is business. Is it not?
Indian man: Certainly.
Prabhupāda: Yes. Just like sometimes they advertise: "Our customers are our master." Is it not? Sometimes advertise. So this is business, but it is a flowery language only that "Our customers are our masters." Because nobody is a qualified customer unless he pays. Hmm? But service is not like that. Service, Caitanya Mahāprabhu said, āśliṣya vā pāda-ratāṁ pinaṣṭu mām (CC Antya 20.47), "Oh, You do whatever You like; still, You are my worshipable Lord." That is service. "I don't ask any return from You." That is service. When you expect some return that is business.