In the first period religious life appears as a form of discipline which the individual or a whole people must accept as an unconditional command without any rational understanding of the ultimate meaning and purpose of that command.
Muhammad IqbalThe revealed and mystic literature of mankind bears ample testimony to the fact that religious experience has been too enduring and dominant in the history of mankind to be rejected as mere illusion. There seems to be no reason, then, to accept the normal level of human experience as fact and reject its other levels as mystical and emotional.
Muhammad Iqbal