To talk in a scientific way, light is just an electromagnetic rediation that is visible to human eyes or sight. There are many type of lights which contain both positive and negative impact on human body. However, light is not only give people the ability to see, but it contain intangible meaning to the architecture through age. A certain same light from the sun can change the meaning through different architecture and form of the building. Referring back to the beginning of the lesson, Egyptian architecture was mostly concentrated on the death and providing spaces for the death believing that its the way of sending them to the heaven. Pyramid was built to act as a tomb and keep the death body of Pharoah or the king of the empire. Later, after the architecture was more concern on the living of people, we can see that the arrangement and orientation of the structure had been changed. The pyramid has no light system in it since it was a place for the death but the shading and light angle has been applied to the following structure since it represented a place for living. Therefore, in that period light determined the meaning of live and death.
On the other hand, Gothic architecture concerned on the flourish which included many pointed arch, ribbed vault and flying buttress. The structure will be very tall with stained glass and oftenly applied to the Christian church. Christianity start to begin since Byzentine which light contain the meaning of Jesus christ and sacred (different from the Egyptian). Therefore, the meaning of light during Gothic period is about being sacred and more into the teaching of God.