it basicly states that you are a slave to your sponsor (or his deputy as in my case)...it sucks man, and if you are not coming to a real good job in a respectable place (mostly this translates into a place run by non Arabs, specially Egyptians)don't waste your life by coming here...Hong Kong is much better
You can't change your job, buy a car, go out of the country, open a bank account, ....etc without his consent.....