Hello, I am very interested in Buddhism. On our side, some people say that a goddess Guanyin possessed me, and I am very accurate in fortune telling. Is that really the case?

There is no amitabha in the south! Whether such a thing is true or not, you don't have to care. You just need to keep faith in Buddhism.

Buddhists do not advocate fortune telling, because anything may change before it happens, but this is not absolute. Bodhisattva is a saint born in the world. Bodhisattva does not possess, but can incarnate tens of billions of beings, which shows the great wisdom and magical power of Bodhisattva. Among the disciples of Sakyamuni Buddha, the deity with big eyes is the first. He can search all the people, ghosts, birds, beasts, insects, fish, men and women, and even all the creatures in the world in one day and night. What a magical power, it's incredible.

If avalokitesvara is the throne of Buddha, then the throne of Buddha is second only to the throne of Buddha. Buddha is the manifestation of the ancient Buddha and the countercurrent of the Tathagata, and its wisdom and magical power are beyond our consideration.

As you said, this situation may be an alias of a fairy or a fairy, and naturally it is helpful, but it is hard to say if you fall into wild fox Zen.