Nankana Sahib is a holy place where the founder of Sikh religion, the dispeller of darkness, the most enlightened global Guru, Guru Nanak Dev ji was born early in the morning to Mata Tripta Ji and Mehta Kalu Ji on 15th April, 1469 (Baisakh sudi 3, Samwat 1526).
Bhai Gurdas in his Var (Var 1/27) has equated this event with the sun that lights up the earth after a dark night :
