树与深绿色的梦魇
[shù yŭ shēn lǜ sè de mèng yăn]
Trees are often related to growth, timelessness, and nature. Deep green can symbolize mystery, life, envy, etc. And nightmare means terrifying experience while sleeping, usually reflecting inner pressure or worries in reality. So we might say this netizen wants himself as firm as trees facing the dark dreams which are full of pressure and pain within deep green world. Also, it seems a bit gloomy and poetic.