Love as Subject to Time; Keats "When I Have Fears"

I think that one of the most interesting things about Keats' poem 'When I Have Fears...' is that fact that not only does it deal with large ideas of love, accomplishment, and time... It also seems to embrace the idea that there may not be anything wrong with not accomplishing all. The concern with time is supported throughout, especially with the repeated use of the word "when"- but it is his emphasis on love as subject to time that strikes me as interesting. Love is referred to in brief terms- his love is the "fair creature of the hour", and in fact- this stanza is more compressed than the others, suggesting that it (like love) is short-lived. It seems that by the end of the poem Keats has accepted the fact that in death, one is essentially alone ("I stand alone", in contrast to "the wide world"). This solitude places him in a position of reflection regarding his own emotions, and leads him to reach a point of acceptance. This crossing over, if it can be called that, seems to be represented in the imagery of the shore. As a place where two separate worlds collide (the sea and the land) the shore acts as a bridge between Keats initial desire for love and fame, to an acceptance of their unimportance upon time of death; an end to his endless fear of not having done enough or been enough.