[i][color="#4169e1"]I am going to assume that you mean the sun in MD, because I see the sun every sunset (which is quite a stunner in Africa might I add ). As for a lack of an actual sun, Ive always guessed it was due to the fact that there are players from around the world, therefore it compensates for all the timezones and that the the energy that creates light came from a sun (as there is a GREAT HALL OF THE SUN in MDA,) to say otherwise I feel would tamper would game mechanics.
As for your initial question: Why is there a sun?
Light is a prerequisite for life. Without it we are nothing. It is the energy source for ALL living things. It has always been synonymous for life, as apposed to black (which is an absorbent and not technically a colour) which is synonymous for death. The sun has been worshipped for eons across various lands. Isis and Ra in Egypt, Surya in Hinduism, Helios in Greek Mythology(as I am sure you are all aware of).
Personally I believe that the sun is evidence of a Creator. Earth's position, and rotation, the age of our star is far to precise for it to be sheer co-incidence from the big-bang theory. I believe that it is there as a Massive battery to provide energy in every possible form. The sun does not only radiate the correct amount of light, it emmits radio waves, microwaves, gamma rays and probably loads more that I am not aware of - which we use every single day.
Why is there a sun?
As a former Christian I would say, because God - the guy who created everything- loves us. I have no other explanation than that - If you can tell can give me a solid reason as to WHY THERE IS A SUN instead of reasons for us worshiping this awesome ball of energy I am keen to hear what you have to say. [/color][/i]