Real story
Mecca,in a desert valley in western saudi Arabia
Once, Guru Nanak's Muslim disciple Mardana said that he wanted to go to Madina, Mecca. He believed that a Muslim was not called a true Muslim until he went to Mecca. In a few days, Guru Nanak, Mardana and Bala all visited Mecca. Guru Nanak was tired when he reached there. She went to the resort for the passengers and relaxed. A fire broke out in the place by looking at Guru Nanak. He angrily said to Guru Nanak: "You don't understand that you don't sleep on god's side? Then Guru Nanak spoke- let me rest, I am very tired. Or then do you not god my feet in that direction! Khadim then realised that God was on every side and apologized to Guru Nanak Dev.
Education
Guru Nanak also excused him and said, "God does not dwell in directions, he reigns in his hearts. Do good deeds, keep God in your heart, this is the true harmony of God.