What do you mean by Bodhisattva, Guanyin, Tathagata, Brahma and Tian Fei? Is it the hierarchical name of Buddhism?

Buddha is Tathagata, you can call it alone, but you can't call it Tathagata! Bodhisattva is a senior of Buddha and a compassionate student. She is one of the many great bodhisattvas in Guanyin. Brahma is the god of Brahma, higher than human beings, but far lower than Buddha and Bodhisattva. Flying is a kind of sentient beings in heaven, equivalent to a dancer and a heaven and man. These are Buddhist terms, a bit like teachers, college students, high school students, junior high school students and primary school students.