Mt Ontake is a sacred mountain 100 km northeast of Nagoya on the border of Nagano and Gifu Prefectures. At 3067 m it is the second highest volcano in Japan, after Mt Fuji. Pilgrimages to worship Mt Ontake and seek spiritual enlightenment have been made for centuries and continue today. On 23-24 January 2018 I joined a winter pilgrimage on Ontakesan with the Wani-ontakesan community, led by three Shugendo masters. Undertaking ascetic practices on the mountain in extreme conditions reinforced that we are part of nature and the universe. Sharing this experience with others and hearing the word of Gods and ancestors through a medium – a hallmark of Mt Ontake worship – was profound and empowering. The rituals and prayers associated with the pilgrimage were a sign of deep respect and reverence for Mt Ontake and its Gods, and the ancestors memorialised on its volcanic slopes. This transformative experience deepened my understanding and appreciation of the elements in Japan and Japanese culture. It is a pleasure to share my impressions of the two days spent with this remarkable community of faith.