“The Cloud of Unknowing” is titled after a 14th century mystical treatise on faith, where the cloud is paradoxically a metaphor for both an impediment to, and reconciliation with, the unknown or the divine experience. It is set in a deserted, low-income public housing block in Singapore and revolves around eight characters in eight apartments. Each one of them encounters a cloud, embodied in a figure or a vaporous mist, and experiences a shift, transformation or illumination that, as the medieval text counsels, can be understood through senses, instead of the mind.