The variations of meaning generally relate to our bodily experience of line and direction. Horizontal line suggests a feeling of rest or repose. Objects parallel to the earth are at rest in relation to gravity. Therefore compositions in which horizontal lines dominate tend to be quiet and restful in feeling. One of the hallmarks of Frank Lloyd Wright's architectural style is its use of strong horizontal elements which stress the relationship of the structure to the land.
Vertical lines communicate a feeling of loftiness and spirituality.
Erect lines seem to extend upwards beyond human reach, toward the sky. They often dominate public architecture, from cathedrals to corporate headquarters. Extended perpendicular lines suggest an overpowering grandeur, beyond ordinary human measure. Diagonal lines suggest a feeling of movement or direction. Since objects in a diagonal position are unstable in relation to gravity, being neither vertical nor horizontal, they are either about to fall, or are already in motion, as is certainly the case for this group of dancers.