It’s evening and I notice moving shadows on a west-facing wall. Curious, I look out the window to see what’s causing the movement and find the setting sun glimmering through breezy aspen leaves. I gaze into the shifting leaves, feel the warm sun and shadows moving around my face, and I’m transported to a happy childhood camping memory. I’m playing in a mountain stream, underneath a shimmering canopy of glossy, green leaves. The memory becomes alive and I feel contentment and bliss.