Question: What does the Guru demand from his disciples and what should the disciples expect from their Guru?

Sri Chinmoy: Each Guru demands from his disciples sincerity, purity and regularity. If a disciple does not have sincerity, purity or regularity, then he cannot make good progress. Aspiration a disciple already has; otherwise, he would not have stayed with the Guru.

Each Master makes his own demands. But the term "demand" is totally wrong. The Guru just tells his disciples what is best for them. In the spiritual life, there is no such thing as demand; only the Guru tries to make his disciples aware of what they have to do.