Dannie Abse At the Concert

The first two stanzas of the poem suggests that everyday passes the same as the last, never recognising one day to be different than another. 'The same old grass, same old flavour' could be a metaphor for life, with Abse saying that our life is just one big fixed routine.The horse in the second stanza could also be a metaphor for human life, saying that we don't move and we are all like a 'statue' - we don't do anything different in our lives - we all have the same structure. 
The fourth stanza highlights how Abse thinks as humans we always wait for things to happen in life. This is suggested by the line - 'If so, join the queue. It stretches all the way to the Old People's Home'. - You can infer from this that Abse thinks we always wait for things to happen but also that we will wait until we get old and ultimatley we will wait until we die, still having achieved nothing.