That's why it only happens once a year.
Actually, it's not that big a deal if you have the want-to, I guess. I'm not all that strong, but by doing this I find where my strength lies.
It's not fun. I do get thirsty, and since there is no distraction from it, it becomes hard at times. But the feeling passes, as all feelings do, and the goal remains.
And to be able to control your own desires in order to achieve a larger and greater goal than yourself, opens possibilities and abilities I didn't know existed before.