饕餮 is a monster which is the embodiment of greed. 

I think it exists in the depths of everyone‘s heart.

People are always difficult to be contented.  Others are always better then themselves in their eyes.  So，people they want more and more. Trapped by their appetence, never get understanding the true meaning of happiness.  (也可以说：never obtaining the essense of happiness..)

Maybe happiness is really simple just nearby，that's 知足常乐(Contentment) 

I have a saying that goes：若无烦事绕心头，便是人间好时节。 

饕餮是一种由贪婪化身成的怪物。
我认为它存在于每个人的内心深处。
人们总是很难能得到满足，眼睛里面总是看到旁人好的，于是，想要的更多，为自己的欲望所累,永远得不到幸福的真谛。
也许，幸福佷简单，那就是知足常乐。
想到了一句话，共勉之：

若无烦事绕心头，便是人间好时节。