Every garden expresses a vision of the world, a special relationship to the earth and an understanding of oneself and others, an organization of the relationship to the earth and the environment, including the social environment. Science is based on facts, provides data, makes assumptions, warns of consequences; but knowing where we are going, how to continue to live together on earth (or not), is a matter of spirituality, of what we believe. This exhibition, structured around 4 poles, proposes to explore the spiritual dimensions of these relationships through gardens of different eras and different cultures: Cultivate and keep, Garden and social link, Inner garden and Visions of the world. Each panel, which is heavily illustrated, invites visitors to discover, understand and reflect with quotes and questions.