I think, Juaquin S. Want to express the reality of good live and healthy.
If we live according those consolar:
¨Keep up inside of the low¨,doing excercise, having a home(not a house, rather a home, because home bring segurity), take care of velocity and contamination, withstand temptation, check with a doctor (when said ¨ watch over your cholesterol), he talk about a jealusy when say ¨doubt in marriage's bed. if we keep those things present we didn' have a problem neither with healthy nor with low nor with any body.

He finish like Salomon in the proverb vanity of vanity all is vanity

I think all of it mean that we have to do a correct things for having a long live , No what I think is correct, rather what is the best for me, not by feelings rather by conbiction.