unión de…”(which means human and space), associate each other to be as part of their modes of life as union, in all aspects. If the need or value from the phenomena an architect believes in is adjustable or takes into consideration of human(s), then the architecture can probably be meaningful to exist. At the same time, Hirakawa believes it will be very important to project the spaces of architecture from the point of view of the union in the art project. And then it will make possible to create a completion of the architecture by presenting mental sensations for indicating the assumption of the architect in the images. So, his proposal for the art project “unión de…” is not to make the assumption as the architecture, but the architecture as a part of the assumption of union with human(s) through Casa Barragán in Mexico City.