Explanation:

Maitreya is regarded as a future Buddha of this world in Buddhist eschatology. In some Buddhist literature, such as the Amitabha Sutra and the Lotus Sutra, he is referred to as Ajita.
According to Buddhist tradition, Maitreya is a bodhisattva who will appear on Earth in the future, achieve complete enlightenment, and teach the pure dharma.
According to scriptures, Maitreya will be a successor to the present Buddha, Gautama Buddha (also known as Sakyamuni Buddha).
The prophecy of the arrival of Maitreya refers to a time in the future when the dharma will have been forgotten by most on the terrestrial world Maitreya has also been adopted for his millenarian role by many non-Buddhist religions in the past, such as the White Lotus, as well as by modern new religious movements, such as Yiguandao