It is solemnly enshrined in the five central Pillars of Islam, that a believer must fast for a month, the period allotted in the lunar month of Ramadan. Within this period, one would reflect upon the excesses of worldly life, and desire to be liberated from it in the hereafter. This could be seen in the manifestation of Eid-ul-Fitr, celebrated in reflection of the life eternal.
In case you are wondering about all these ramblings, it is just because the holidays are getting to me (thank you, Malaysia, for all those holidays! :) With this, I would like to wish all a Happy Merdeka Raya! (however did that cliché-structured term come about?)