The Tang Dynasty "Poetical Essay on the Supreme Joy" is another good example of the allusive nature of Chinese writing on sexuality. This manuscript sought to present the "supreme joy" (sex) in every form known to the author; the chapter on homosexuality comes between chapters on sex in Buddhist monasteries and sex between peasants. It is the earliest surviving manuscript to mention homosexuality, but it does so through phrases such as "cut sleeves in the imperial palace", "countenances of linked jade", and "they were like Lord Long Yang", phrases which would not be recognizable as speaking of sexuality of any kind to someone who was not familiar with the literary tradition.