"Every prostration is the paying of respects to the Buddha (also include Bodhisattvas). This practice helps to purify the mind, humble the ego and lessen obstacles along the spiritual path as one repents past misdeeds and aspires towards spiritual development. With mindfulness of one’s body, speech and mind during the journey, spiritual qualities are cultivated."
This paragraph from the temple website sums it off quite well. Whether you believe in it or not, it is your own wish. But this is definitely not compulsory. I think less than 5 percent of the Buddhist in Singapore do it.
Yup, just a short post. Ciao!