When your breaking the rules to celebrate the Shabbat God does not like you for it, you might get pleasure from the fact breaking the rules makes you personally happy but your not getting yourself any brownie points with the man upstairs. Religious laws just like any other laws are there to be obeyed otherwise they would not exist. Its like saying I will rob a bank it is illegal but the bank manager will be happy I have money to spend on nice things for myself.
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from the article: In Jerusalem, celebrating the desecration of the Sabbath