I think about people. Who wrote it in Bai Yunxiang? What does the whole poem mean? Please explain, thank you!

I think of people in Bai Yunxiang, and I think of things deeply rooted in my heart. Since the autumn wind in October, Saihong wants to go south and is willing to send a book of brocade to Jun's side. Life is separate. We have known each other for a long time. Who can't write clearly, but it must be the popularity of modern networks, and the literal meaning is simple enough. Not translated into vernacular)