Let Go of Your Worries Let go of your worries and be completely clear-hearted, like the face of a mirror that contains no images. If you want a clear mirror, behold yourself and see the shameless truth, which the mirror reflects. If metal can be polished to a mirror-like finish, what polishing might the mirror of the heart require? Between the mirror and the heart is this single difference: the heart conceals secrets, while the mirror does not.