Have you ever felt a lump in your throat as you hold back your cry? I am going to go on 100% certainty that you have at some point.
This is because we have been taught that it is not OK to cry especially in public. That lump in your throat is the actual energy that you are holding back, and not allowing to release from your body. Instead, when we hold it back it gets sent back down into the body where we store it along with all the other feelings we have not been willing to express.