It means for some months you get paid not to come to work but be with your wife in foreign land....prob coz according to their rule women cant travel without marham....
after the said period (some months cant recall how long) they get vacation which is unpaid but by that time they enroll in some uni as a student (usually to study English) and are on scholarship ....When wife graduates, husband enrolls in a degree course and they stay out of Saudi for another 1-2 yrs....
Life is soo smooth for them