Humans need plants to survive, whether it be for a food source, reoxygenating air for us to breathe, or helping our mental health and well being, with its calming properties (where biophilic design came from)People have always intuitively sensed that contact with plants and nature is a calming restorative tonic for the body and soul. Not only do plants provide a sense of calm but as you all know, they are a significant part of what we eat with just 15 crop plants providing 90 percent of the world’s food energy intake.