Forumi Horizont (http://www.forumihorizont.com/index.php3)
- Fizikë dhe Astronomi (http://www.forumihorizont.com/forumdisplay.php3?forumid=10)
-- the world of physics and astronomy (http://www.forumihorizont.com/showthread.php3?threadid=10080)

Ok, maybe you would better understand if were in my position. It is pretty difficult to explain answers under "certain" conditions.
This (What light is) is something basic with respect to the discussion not with respect to me. You opened this discussion and as such it is expected that you know the basics of what we are trying to assert here. If you don't then it makes it difficult for others to explain their answers.
Here come some of the answers to what you wrote in the last message:

If you assume you have an enclosed vacum space, with material that is perfectly reflective (is possible) then the only way for the light to escape is through the same avenue that it enters. So you can not avoid this if you have an outside source. The only way to set up such conditions that you imply, will have to use an inside source. And if such then when light is produced will be absorbed again by the same material that is beeing used to released in the first place and will continue as such in a loop. So you can't "fill up" the space after all.
Does it make sense? Let me know...