They keep you in line. They remind you what you really need to do when you have too much to do. With grace and commitment, a ritual eventually becomes a rhythm. A heightened balance that sees you accomplish the goals you set for yourself.
Rituals ensure that when you set up challenging goals like blogging every day , you don't do it while battling heavy eye lids that crave sleep. You do it at a fixed time every day. Otherwise you just end up losing steam. Your line of thought goes awry and then you just....zzzz.