When you are in pain, writhing is a descriptive term for the nature of the movement, hence the phrase "writhing in agony." When the spirit is in pain, it shrieks, and when the soul is in pain, it wails with loud cries and tears. It wails and wails and wails, until it dies or is rescued. If it is never rescued, it dies wailing.
The Lord God Father in Heaven, El Elohim