BDBD is Psalm 51:5-6

There is a nature within that possesses, controls, and destroys the self. All have it and all deal with it differently. First this way; then that. We stare at it, then we look away. We laugh with it, then we cry with it. We always are repulsed by it and so we hate it. We do not understand it and seldom own it as our own, the wicked companion I own from when I came forth from my mother’s womb.

When we realize its ever existence in the hidden places of the soul, we react differently to it. Sometimes denying its existence. Other times ignoring it. Sometimes trying to subdue and control it. Other times embracing it to sink ever deeper into despair and ruin. Is this not what happened to David starting from when he decided to stay home from war and saw the naked beauty bathing on the roof?