In the heart of a botanical garden in a medieval university town in Germany stands a majestic ginkgo tree. This silent witness has observed over a century the quiet rhythms of transformation across three human lives. 2020, a neuroscientist from Hong Kong, exploring the mind of babies, begins an unexpected experiment with the old tree. 1972, a young student is profoundly changed by the simple act of observing and connecting with a geranium. 1908, the university’s first female student discovers, through the lens of photography, sacred patterns of the universe hidden within the humblest of plants.