Outside, near the entrance, a tendril wafts into my nose— A pleasant olfactory response, as the molecules are absorbed, and work into the capillaries, Traveling through the veins, Into the heart twice and then the arteries to the brain, Binding to and activating the nicotinic receptors— Causing a release of dopamine— Yes, a runner’s high! And never mind the downsides, Even after a 30-year quit.