The main body of the church is made up of three concrete so-called sails, which are three segments of a cylinder curved along its axis. The radii of the three segments are the same, but their height and length decrease with distance from the vertical wall. The first sail is placed symmetrically facing the wall, but the other two are placed asymmetrically so that their edges step back from the entrance. The spaces between the sails and wall are filled with clear glass screens, which flood the interiors with light.