VANCOUVER, BC — Light filters through a canopy of towering Douglas firs. Trunks stretch upwards toward a band of blue sky. Bird song slices through the silence. We are instructed to stand still, feet planted in the earth, feeling the breeze on our skin, inhaling the scent of dirt and pine, listening to creatures scuttling in the undergrowth. …Despite first appearances, this is not the initiation ceremony of a tree-worshipping cult. Rather, I am taking part in guided forest-bathing in Vancouver’s Lighthouse Park, an old-growth temperate rainforest hugging the shores of West Vancouver. …The idea of guided forest-bathing might seem a little absurd. Why not just take a walk in the forest? Why the yoga mats and tree-focused meditations, intentional walks and guidance cards? …The practice, known as shinrin-yoku, originated in Japan in the 1980s in response to karoshi — death by overwork.