Feeling of missing

I feel that I was missing.I don't know what I want to do,yes,this feel come to me again.what's essential of life,what's the essential of work.work for living or live for working,it's a big problem for me.sometime I think may be I should find another job,my job is not my favorite to call a spade a spade.it's boring me.I hate my job,I hate because I must do someting I really don't want to do.Damn!!!