My dad says we should only take what the pride needs to keep the Circle of Life in balance. If we took down gazelles just to learn how to do it, pretty soon there wouldn't be any left. Then we'd be as bad as the hyenas.
It states that everything exists in a delicate balance. All organisms (including plants and animals) are a part of it, and must respect it in order to maintain nature's balance and thus keep the current evolutionary era as long as possible.
The Circle of Life concept is explored in the 1994 movie The Lion King and is strongly emphasized throughout this television series. One goal of the Lion Guard is to protect the Circle of Life, and ensure that all animals live in harmony, not taking more than is necessary for their survival. Thus greed, gluttony, poaching, and thievery are looked down upon. The Circle of Life also requires larger predators to stay in their own territories, preventing conflict and disorder.
Animals who do not respect or ignore the Circle of Life are usually considered rogue and condemned to exile from the Pridelands, normally by the Lion King. Those who reenter will be driven out again by the Lion Guard. When an animal has passed away, it is said that they have completed their journey in (or through) the Circle of Life.
When Kion sees a Chameleon eating a fly he tells his friend Jasiri that's an example of the circle of life. Jasiri says that most hyneas respect it. During the song Sis ni sawa Jasiri claims that the circle of life will guide everyone.
Basi explains when entions that when there are too many fish in the lake, the crocodiles come along and eat the fish. When Pua then arrives at Big Springs to ask Basi for fish. Makuu gets mad that they have to leave. Later when all of the animals go home Kion is glad to have the circle of life in balance.
At the end of the celebration Kion apologizes to his father, but it turns out that Simba is very understanding of the mistake, especially since he did it in the spirit of Kupatana. Kion says that it's the circle of life.
When Janja replaces Cheezi and Chungu with two new hyenas the guard lets them stay in the Pridelands. The hyenas are eating up all of the left overs and Ono explains that they're helping the circle of life.
Thurston's herd goes to the Watering Hole, to get a drink. Bunga explains that it's the giraffes turn to drink. Ono says that taking turns drinking the water is part of the Circle Of Life. Thurston goes to wait and starts to complain about how the giraffes always take too long to drink because of their necks.