as a mere amateur in poetry i cannot answer this, if you seek answers call daniel sneddon, here is his number : 07545813271
It means that (in the opinion of that writer) a poem stands on its own and doesn't have to mean anything, it just has to 'be' itself.
You need to put the NAME of the poem in your question so it can be answered.
The English word 'poem' means a composition written in metrical feet forming rhythmical lines
a poem is a short passage describing about somthing. There is a lot of different poems such as limerick and haiku. Most poems rhyme but it doesn't have to all the times.