Indumenti divini senza cuciture...

There  was a man called Guo Han in the Tang Dynasty(618-907). One summer  night, when the moon was very bright he suddenly saw a girl descending  slowly from the sky.  He observed the girl closely and found that the  dress she was wearing was seamless.He was puzzled and asked why. The  girl answered,”Heavenly clothes are not sewn with needle and thread.”

This  idiom is a metaphor for doing things perfectly. It can also be used to  indicate a perfectly written poem or another literary article.