Why did Wei Zi cry when he sealed the Buddha?

Wei Zi cried because she was not only helpless about her own fate, but also deeply cared and loved all beings. In the TV series "Wei Zi sealing ten thousand buddhas", Wei Zi is a monk who sacrificed himself to protect all beings. When she finally completed the task of sealing the Buddha, she felt very sad and sad, because it meant that she could never return to earth to see her lover. In addition, Wei Zi also knows that everything she does is to protect all beings, but her departure will also bring great pain and sorrow to people. Therefore, her crying is not only the helplessness of her own destiny, but also the deep care and love for all beings.