What is meant by hakuna matata in The Lion King?

The phrase "hakuna matata" means "no worries" or "no problem" in Swahili. It is a philosophy of living without worry or stress, and it is often used as a greeting or farewell. In The Lion King, the phrase is sung by Timon and Pumbaa, two characters who live in the jungle and don't have any worries. They teach Simba, the main character, to live by the philosophy of hakuna matata, and it helps him to overcome his problems and achieve his goals.