Guru Gobind Singh Ji was the tenth and final Guru of the Sikh faith, born on December 22, 1666, in Patna, India. He became Guru at the age of nine after the martyrdom of his father, Guru Tegh Bahadur Ji. Guru Gobind Singh Ji is known for his leadership, spiritual teachings, and the establishment of the Khalsa in 1699, a collective of initiated Sikhs committed to upholding justice and equality. He authored several important texts, including the Dasam Granth, which contains hymns and poetry reflecting his philosophy. Guru Gobind Singh Ji emphasized the importance of selfless service, courage, and devotion to God. He passed away on October 7, 1708, leaving a lasting legacy in Sikhism.