A gurpurb is a special day in the Sikh religion when people celebrate the birthday or other important events in the lives of the ten gurus who founded Sikhism. Imagine it's like a big birthday party for the gurus! People celebrate by going to the Gurudwara (the Sikh place of worship) and singing special hymns called shabads, which are like catchy songs that tell stories about the gurus. They also read from the holy book, the Guru Granth Sahib, which is their guidebook for how to live a good and kind life. After the prayers, everyone eats together and shares a special meal called langar, which is like a big potluck where everyone brings food to share. It's a happy time for everyone, and they feel grateful for the gurus and the good teachings they brought to the world.