Good responses so far. Just to add to points brought up by Kevin and upekha:
Any ritual that one does - candles, prostrations, chants, etc. - should be done to develop and maintain appreciation and devotion (saddha) to the Buddha, Dhamma and Sangha. This devotion is the foundation. Without it there is no reason to want to walk the path the Buddha did. You have to be devoted to what the Buddha accomplished.
These rituals should not be done blindly with the belief that the mere act itself will bring about some benefit, nor should they be done because it is "what your supposed to do."
Hope this helps.