This quote is about crying and its positive effects. It suggests that when we are feeling overwhelmed or sad, it can be helpful to allow ourselves to cry. Crying is a natural way of releasing emotions and it can help us to feel better afterwards. When we have been feeling ungrateful or hard-hearted, we can use shedding tears as a way to soften our hearts and become aware of our own feelings and issues. We should not be ashamed of crying, because it is like rain that washes away the dust to reveal the true feelings beneath.