Guru Nanak Dev Ji
Guru Nanak Dev Ji, the founder of Sikhism, emphasized the worship of one universal God who is formless, eternal, and creator of all things. He taught that the divine can be reached through meditation and living a virtuous life. Guru Nanak Dev Ji's teachings stress the importance of equality, community service, and social justice, with an emphasis on the unity and interconnectedness of all people. The concept of Ik Onkar, or the belief in one universal God, is central to Sikhism and was first introduced by Guru Nanak Dev Ji. His teachings continue to inspire and guide millions of Sikhs around the world, making Guru Nanak Dev Ji a significant figure within the context of monotheistic religions and the broader category of God.