For some information on the Buddhist monk and teacher Han Shan Te Ching (1546–1623 CE) see this post.

Our mind and body are by nature pure; but we sully them with sinful thoughts and deeds. In order to restore ourselves to our original purity, we need only to clean away the accumulated dirt. But how do we proceed with the cleansing process? Do we put a barrier between us and the occasions of our bad habits? Do we remove ourselves from the places of temptation? No. We cannot claim victory by avoiding the battle. The enemy is not our surroundings, it is in ourselves. We have to confront ourselves and try to understand our human weakness. We have to take an honest look at ourselves, at our relationships and our possessions, and ask what all our self-indulgence has gotten us. Has it brought us happiness? Surely not.

If we are ruthlessly honest we’ll have to admit that it was our own foolish egotism that soiled us. This admission is painful to make. Well, if we want to melt ice we have to apply heat. The hotter the fire, the quicker the ice melts. So it is with wisdom. The more intense our scrutiny, the quicker we will attain wisdom. When we grow large in wisdom we dwarf our old egotistical self. The contest is then over.