Light isn't the fastest, I am,
I'm always there, but unnoticed,
I lie in waiting until light finds me.
In me you will be,
until the knowledgeful light
finds it's way...finds me...
and I will be replaced, removed once again.
Easy in my opinion. Haven't done one of these for a while (or even been online for that matter)
Good luck and post any idea you may have!