#metaphysics of space
- Apse — A semicircular or polygonal vaulted niche or room, usually located at the rear of a Christian church or ancient basilica, extending the main nave and housing the altar. In the philosophy of religion and the anthropology of the sacred, the apse is not merely a geometric form, but symbolically represents 'heaven' or the transcendent dimension, an architectural core where dogmatic values and absolute moral principles are revealed to the community.