Mutual Exclusion by disabling interrupt

I am reading William Stallings operating system book which gives this pseudo-Code for disabling interrupt to achieve Mutual Exclusion

while (true) {
/* disable interrupts */;
/* critical section */;
/* enable interrupts */;
/* remainder */;
}


But I don't get why there is a While loop in the code which is true this means that this part of the code repeats forever but why?