Shakespeare Sonnet 73

Sonnet 73 is another one in which Shakespeare uses seasons (in this case autumn) and nature to get his message across.  As we discussed in class, this definitely carries a cautionary tone with it.  While it's one of many to have a sort of "carpe diem" theme to it, number 73 seems to take it a little darker than most.  It seems to me that the sonnets have now begun to lean more away from getting the young man to procreate, but closer to convincing the man to love the speaker as he loves him.  I feel like Shakespeare hints at his own older age and that the boy needs to take advantage of his youth before ending up like him.  In the last line, it's very interesting to imagine "to love that well" as in fact talking about William.  Considering that, the sonnet must be asking the man to love the things he can, before they are lost (such as the speaker!)