飄飄何所以天地一沙鷗意思

"飄飄何所以，天地一沙鷗"這句詩出自唐代詩人杜甫的《旅夜書懷》。這句詩的意思是：我像那無依無靠的沙鷗，在天空中飄泊，不知道為了什麼原因，只是隨著天地間的風向而飛翔。

這句詩表達了詩人孤獨、無助和漂泊不定的心境。杜甫在寫這首詩時，正處於戰亂時期， himself and his family were forced to flee from their home in Luoyang and travel to Chengdu in Sichuan province. 在這種背景下，詩人感到自己像是一隻無家可歸的沙鷗，隨波逐流，無法掌握自己的命運。

"飄飄" here means wandering or drifting aimlessly, while "何所以" is a question asking for the reason or purpose of something. "天地一沙鷗" is a metaphor comparing the poet to a solitary sandpiper, a small migratory bird that is often seen alone and is known for its ability to travel long distances.