At the heart of a German university grows a majestic ginkgo tree, its lifespan measured in centuries. As the years pass, the distinguished plant bears witness to the private lives of those who seek shade under its boundless branches, forming a nexus that connects three generations of students and teachers across time and space. In 2020, a visiting neuroscientist conducts a series of experiments into the possibilities of botanical consciousness. In 1972, a young student is profoundly changed by studying the behavior of a simple geranium. And in 1908, the university's first female student's photographic inquiries reveal sacred patterns of the universe hidden within the humblest of plants. Over time, each is transformed by the quiet, enduring, and mysterious power of nature.