ORION

参

Can1, to participate, take part in, join was originally the constellation Orion, the hunter. 

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Three stars on top of a man below.

 

 

This evolved into shan彡shadow/小small xiao3 below and big大da4 with a triangle厶si on top for the head. The revolution simplified 3 stacked stars厽lěi) on top into one: namely, the triangle厶 on top also  represents a big head whether of the constellation Orion or of the human observer.

 

Logically then  惨can3, the heartfelt can1参 means to participate in others sorrow, thus to be miserable.