Why do Buddhists bow and prostrate to the Buddha?

Bowing and prostration are humble expressions of respect and appreciation for the historical Buddha, our Teacher, who understood the Truth of the universe and our nature. Based upon his kindness and compassion to liberate all sentient beings from suffering, the Buddha serves as an excellent model for humanity. Therefore, in bowing before the Buddha, we are also reminded of our own Buddha nature. We humbly examine our mind, and renew our vow to remove any obstacles from our mind and life which prevent us from become a fully enlightened Buddha, manifesting the kindness compassion and wisdom our Teacher has shown to us, in order to benefit all sentient beings.