No principle is more definitely enforced by Christ than that successful prayer must have in it the quality that waits and perseveres. It must have in it the courage that never surrenders, the patience that never grows tired, and the resolution that never wavers. Prayer is not an indifferent or a small thing. It is not a sweet, little privilege. It is a great prerogative, far-reaching in its effects. Failure to pray entails losses far beyond the person who neglects it. Prayer is not a mere episode of the Christian life. Rather, the whole of life is a preparation for and the result of prayer.