What is the main purpose of helium?

Excuse me, I've been reading about helium recently and I'm a bit curious about its primary usage. Could you possibly explain what the main purpose of helium is? I've heard it mentioned in various contexts, such as balloons and scientific experiments, but I'm not entirely sure what its main application is. Would you mind elucidating its main significance in both daily life and in more specialized fields? I'm really interested in understanding its versatility and importance.