Why do Buddhists bow?
In Buddhism, the traditional gesture of reverence to the Triple Gem is to place the palms of both hands together and raise them high in front, usually up to the level of the forehead. In order to express deep veneration, a Buddhist may bow or prostrate before the image of the Buddha, members of the Sangha and the masters of the Teaching. When a Buddhist prostrates before an image, he acknowledges the fact that the Buddha has attained the perfect and supreme Enlightenment. Such an act helps the Buddhist to overcome egoistic feelings and he becomes more ready to listen to the Teaching of the Buddha.