I disagree with soul loss. However we do expend our energy. I did a meditation on calling back your personal energy. It is a visualization of a rotating globe over the head. You picture your energy flying back from all time or lifetimes (if you believe that). This energy sticks to the globe. It slows in rotation as it gets heavy with your energy. Then picture it sliding off and into the top of your head. I was shocked how good i felt after. I do this now when i become mentally fatigued. Weither it is real or my imagination it always makes me feel better. I learned this from some guest on one of our shows.