Literature Reference: 雾扫清玄塞，云开静朔方。—— 《平胡》 The fog clears the mysterious frontier, clouds part to quiet the northern lands. Source from 'Ping Hu'.
玄: Cultivated and erudite.
塞: The fortress, the frontier stronghold.
Meaning: Xuansai symbolizes a profound frontier, representing mystery and resilience.