Simran is an activity in the Sikh religion where you sit cross-legged and repeat a certain phrase or word over and over again. It's like singing a song, but without music. It's supposed to help you focus your mind and connect with God.
Imagine you are sitting on the floor with your legs crossed, like how you sit when you play games. You close your eyes and start to say "Waheguru" over and over again, like a chant. It's like when you repeat a rhyme in a song or a game. Each time you say it, you focus your mind on the meaning of the word and what it represents in your religion.
Simran is like doing exercise for your brain. It helps you be more calm and focused, and it's a way to show how much you care about your religion. It can be done at any time, whether you're at home, outside, or even in a crowded place. It's a way to connect with your faith and feel closer to God.