What does the snow in Saibei mean?

Lyrics: I love you, the snow in Saibei is floating all over the sky, your dance is so light and your heart is so pure. You are Chunyu's sister. You are the messenger sent by spring. I love you, the snow in the north of Saibei is floating all over the sky. You dress up the silver world with a body as white as jade. You melt your life into the land and nourish the flowers and leaves of the returning wheat seedlings. I love you! Snow in Saibei, snow in Saibei