Rauschenbach later linked his interest to visual art with the problems of docking spacecraft. During docking operation, pilot could see the other spacecraft only on a TV screen. Does it render real objects good enough, wondered Rauschenbach, to bet the lives of two crews on a flat electronic image? This led him to study perspective and human perception of flat images. This applied problem transformed into general interest in humanities: "Art and art studies, faith and religion live forever, and the man is always anxious to step further into the deep of it" ("искусство и искусствознание, вера и религия существуют вечно, и в человеке всегда живет и будет жить какое-то беспокойство, желание проникнуть как можно глубже в сущность всего этого").