"Gazing at the Moon and Thinking of One Far Away" is a poem by the Tang poet Zhang Jiuling.
Tips
culture
It opens 海上生明月,天涯共此时, 'over the sea the bright moon rises; at the ends of the earth we share this moment', a stock line for Mid-Autumn cards and messages.
usage
In the title 怀 means 'to miss, to keep in mind', as in 怀念, and 远 is the one far away.