How did Guru Nanak manage to form the Sikh Religion when Islam was the top religion in the world at that time?

Answer 1

Nanak said God is omnipresent in all creation and visible everywhere to the spiritually awakened. Nanak stressed that God must be seen from "the inward eye," or the "heart" of a human being: devotees must meditate to progress towards enlightenment. Nanak emphasised the revelation through meditation, as its rigorous application permits the existence of communication between God and human beings.God has no gender in Sikhism.

Sounds lovely.

Answer 2

Around 1499, while bathing in the river Bein, Nanak had a spiritual experience, which he described as a message from God. After three days of visions, he re-emerged, gave away all of his possessions, and became a traveling preacher. He took his message, "There is neither Hindu nor Muslim," throughout India and the middle East, meeting with Hindu and Muslim religious leaders. His message of fraternity and universalism was well received, and his following grew rapidly.

Answer 3

Sikhism is the third major branch of Hinduism and was founded by a man named Nanak, who was born in India in 1469. The teachings of Sikhism are a blend of Hinduism and Islam. Rather than borrowing from the Hindu and Islamic scriptures, Sikhs wrote their own scripture, based upon their interpretation of certain ideas taught in Hinduism and Islam. The sacred scriptures of Sikhism are known as the Granth Sahib, or “Lord’s Book.” A unique feature of this work is the number of languages utilized in its composition, making it nearly impossible for even learned Sikhs to study these scriptures, much less the common person.