I don't think it is going to be too difficult these ideas in modern poetry. There are a couple of elements to bring out in such a discussion. The first would be that it might be easier to search for images of these concepts in poetry. For example, what images, or mental pictures, of futility can be found in Yeats' "The Second Coming?" Another example would be to find examples of instability in Hughes' "Dream Deferred." A final example could be to find images which show a loss of faith in the poetry of Karen Gershon. If we engage upon the extraction of these values through images in modern poetry, the task becomes easier for one is searching for pictures rendered that help to bring out these ideas. Another approach is to find specific writers of the modernist time period and examine how the concepts were present in their work. For example, how can the concepts be found in the writings of Pound and Eliot? I think that this could be another approach to take in the extracting of said concepts in modern poetry.