Ramendan is analogous to the Islamic period of fasting, prayer, and charity known as Ramadan. Ramendan comes around the same time of Ramadan, and indeed the two holidays share similarities. One of the major differences between the two, however, is that Pastafarians do not fast or pray, as doing so would conflict with their flimsy moral standards.
Instead, Pastafarians spend a few days of the month eating only Ramen noodles and remembering back to their days as starving college students. This simple act teaches Pastafarians to be happy about what they've accomplished, and if they haven't accomplished anything yet, to at least be happy that they are Pastafarians. Celebrating in complete pirate attire is encouraged, but a simple eye patch will be fine. Ramendan is the least commercial of the Pastafarian holidays which is not saying a lot, since you aren't going to see a Pastover sale at Macy's any time soon. At the end of Ramendan, Pastafarians are encouraged to give their extra Ramen to those who are more needy.