Final answer:
The Adi Granth, now known as the Guru Granth Sahib, is the central religious scripture and final Guru of the Sikhs. Compiled by the fifth Sikh Guru, it includes hymns from various religious saints and has been the eternal Guru since the 17th century.
Step-by-step explanation:
The Adi Granth, also known as the Guru Granth Sahib, is the religious scripture and the final Guru of the Sikhs. It was first compiled by the fifth Sikh Guru, Guru Arjan, in 1604. The scripture is a collection of hymns and writings by Sikh Gurus and other saints from various religious backgrounds. The Adi Granth was declared as the Guru of all Sikhs by the tenth and last human Guru, Guru Gobind Singh, hence elevating it to the status of eternal Guru. It has been central to Sikh worship ever since.
This holy book contains not only the works of the Sikh Gurus but also writings of Hindu and Muslim saints, showcasing the Sikh religion's inclusive philosophy and acceptance of all religions. The Adi Granth's teachings focus on devotion to God, justice, social equality, and moral integrity. Given this high standing, the Guru Granth Sahib is treated with great reverence in Sikh culture and is the focal point in Sikh places of worship, the Gurdwaras.