The basic idea of ecopsychology is that while the human mind is shaped by the modern social world, it can be readily inspired and comforted by the wider natural world, because that is the arena in which it originally evolved. Mental health or unhealth cannot be understood simply in the narrow context of only intrapsychic phenomena or social relations. One also has to include the relationship of humans to other species and ecosystems. These relations have a deep evolutionary history; reach a natural affinity within the structure of their brains and they have deep psychic significance in the present time, in spite of urbanization. Humans are dependent on healthy nature not only for their physical sustenance, but for mental health, too. The destruction of ecosystems means that something in humans also dies.