When you illuminate a picture or drawing, you are making it pop from its background; making it stand out.  The pyramids in Mexico are actually illuminated by the surrounding area.  The green in the forest and landscape make the brown of the stone temples stand out.  This draws attention to them.

An Idiom has to do with the language or dialect of a society.  The Egyptians used hieroglyphics as their written language.  They used it to tell the stories of the gods and of the pharaohs.  "Scribes and artisans [also lived reasonably well], for their skills were crucial to the operation of the temple services and the creation of inscriptions and paintings in the temples and tombs" (Roth 209).  These inscriptions were deeply cut into the stone so a to stand the test of time. 

  

Materials are a very important part of design.  Certain materials aid in the firmness or strength of a building.  Materials also have to do with what you use to do a drawing or painting.  For example, I used watercolors, pen, and colored pencil.  The Egyptians had to find a material that was available to them in the desert.  They found and used a type of sandstone, which was used to build their temples and the pyramids.  This material had to strong enough to last forever, due to the Egyptian's beliefs in an afterlife.  

Commodity is the usefulness of a space or an artifact.  For Pat's chair, I did a chair and table combination with a shelf.  This could be used for many things, such as working, eating, or just relaxing.  Sir Henry Walton stated, "In architecture, as in all operative arts, the end must direct the operation.  The end is to build well.  well building hath three conditions: commodity, firmness, delight."

If a building or an artifact does not have firmness, then it will not be able to stand over time.  A good example of firmness are the pyramids of Giza.  They were built from a strong stone and in a shape that is able to withstand the pressure of gravity.  This is why they are still standing.

Delight is simply pleasing to the eye.  The Great Wall of China shows delight, because it moves with the land.  This makes it pleasing to the eye, by flowing smoothly and having smooth curves.  Decoration of an artifact of space can also fill the qualification of delight.  

All together, these features combine to create an artifact, space, of piece of architecture that is useful, able to withstand the test of time, and be pleasing to the eye.  All architecture and design relates back to these points to make is successful.