This poem urges the young to enjoy being young and innocent because all too soon the reality of the world settles in. Of all the ages and stages that people go through, the author seems to be saying, this is the time when 'youth and blood are warmer'. He also goes on to say that if the young do not relish thier youth all too soon it is gone and as older people they will regret not having taken advantage of their youth while they could.