Aesthetic sense of the space should be resumed as an unity of contradictions. It can be discovered at the moment of contemplation between the labors within the ordinary life. Then, man sees the spatial horizon of his own and understands that it could be beautiful. This understanding leads him to the dream of happy habitat. The visions of beautiful landscape then concentrate on those of habitat. The use of this kind of happy and beautiful habitat can not and should not be reduced as a practical dimension. The feeling of man on his space has and needs its ontological aspects. In this ontological vision on his habitat, space opens to the infinite mystery. Space is now here and there, infinitely. Man needs his comfortable habitat and, at the same time, wants it open to the infinite space. And architecture and city want this dream of man to be true, in his ordinary life.