You need some good SOURCES. That is the trick. A lot has been written about hope. If you collect 5 or 10 journal articles, books, etc., it is easy to give a paragraph about the main idea expressed by each person. After you have done that, go back to the beginning and write an intro that ends with a thesis statement -- a sentence that expresses the main conclusion or theme you found in those sources.
So.... it is like an exploration and search, and with the Internet it should be easy.
When I think of hope, I think of Barack Obama's campaign, Victor Frankl's book Man's Search for Meaning, and also a quote by Nietzsche: Hope is the greatest of all evils, because it prolongs our suffering!!! :-)
But in the field of nursing, hope is seen as a resource useful for healing and boosting the immune system.