Sub handling in VBA

Does VBA create a Sub Main() the way VB does if you don't include it in your code? I ask because I've been using a procedure called MainProcedure to call all my other subs from, and the program seems to run fine, but since I have no Main shouldn't the program run all my procedures twice? Once when called from MainProcedure, and again when going top-to-bottom through each sub as entered?