The inner bark of that red willow is the main ingredient used to make tobacco for the equinoctial Sacred Pipe ceremony, which is meant to rekindle the sacred fire of life on Earth.National Geographic, 20 Mar. 2018 Post-equinoctial 90s qualify as unusual in Philly Anthony R. Wood, Philly.com, 26 Sep. 2017 The inner bark of that red willow is the main ingredient used to make tobacco for the equinoctial Sacred Pipe ceremony, which is meant to rekindle the sacred fire of life on Earth.National Geographic, 17 Mar. 2016