Why do people bow to the guru granth sahib?

People bow to the Guru Granth Sahib as a sign of respect and reverence for the scripture, which is considered the eternal Guru in Sikhism. Bowing acknowledges the divine wisdom contained within the text and signifies humility before its teachings. This act reflects a deep spiritual connection and commitment to the principles of Sikh faith, promoting equality, devotion, and community. Additionally, it reinforces the belief in the Guru's guidance in one's life.