大乘起信論裂網疏 1.20

1.20

Question: In the verse he first spoke of removing doubt and casting off grasping, and later spoke of arousing faith; now in the text he first speaks of arousing pure faith, and later speaks of severing doubts and graspings. Why is this? Answer: If considered in terms of one's own practice, then removing doubt, casting off grasping, and arousing faith are like the two ends of a balance scale—their lowering and rising occur at the same time, without before or after. If considered in terms of transforming others, one must first oneself arouse pure faith in the Mahāyāna, and only then can one sever the darkness of doubts and erroneous graspings of all sentient beings and cause the Buddha-gotra to continue unbroken. Therefore, although it is restated, there is no fault of redundant repetition.