Meaning of word "ENJOY"

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These days i came across an article online which read what is enjoying life? which made me think that really what is the real meaning of enjoying life? Does enjoying life means doing all that we like to ( which may include disturbing others, love to see others in tension) or is it living tension free life ? Really i have seen many people who just have no problems with life even though they are stuck in hell lot of probs. And also some people who don't have any problems but then also they keep on complaining life. So are you all enjoying life with real meaning of word "enjoy"....