The main sources of all natural light are the sun, the moon and the stars. In other words, the principle source of illumination is the light as mediated by atmosphere. According to some philosophers, spiritual or holy light includes not only material and quantified aspect, but being non-physical properties it treats as a spiritual connector between god and man. The light is the main part of existence which not only contacts to the surface of objects, but also helps them form. In other words, light is the key of finding space fundamental in making holy places meaningful. The present paper tries to make a comparative analysis of lighting in some of the most famous sacred buildings around the world. As such, the methodology preferred in this piece of research is descriptive, analytic and comparative.
