That is something very strange to say. If you have a belief.. and the belief says something, how can there be no logic behind them?
If it says: "Do not kill"
Is there any logic behind it? to ask that question is just stupid in itself.. the logic behind it is that you dont kill, so there is always logic behind it.. as the logic behind a rule is that you dont break it. why dont you kill.. because people die otherwise.. Why cant women wear pants in some religion.. i dont know, why dont you google it instead of making this thread, and actually learn something.
what you want to say is whether you see any logic behind it.. and without proper understanding and knowledge, which you obviously dont have.. you cant.