I think they saw nature in a spiritual way as the collective "Over-soul" of all the souls that create and reside in every form in creation. That means that very soul is one with and is the Over-soul, which some call God, but Dickinson and Whitman may have thought that word had to much connections to organized religion which has a different definition than they had.
Hello. You did not enter the speech to which this question refers, which makes it impossible for your question to be answered accurately. However, I will try to help you in the best possible way.
To identify the main message of a speech, you must understand the subject that is being discussed in the speech and how that subject is developed by Ban through the arguments of the speech. Likewise, to identify the evidence, you must consider the information that the author uses to justify the arguments he presents. This is because the evidence is used to give veracity and prove that the author uses correct and relevant arguments to develop the theme of the discourse.
I would say that it most appeals to students, as they are the ones trying to find their identity, and ones who like the express themselves however they feel. They are typically the ones who dislike dress codes.