Answer:
The American Dream is an optimistic, motivating force that propels people to achieve and accomplish things that we might otherwise not strive for. Its elusiveness makes it that much more compelling as, for many, one's dream always seems to be out of reach, but still very much worth pursuing.
The American Dream is the national ethos of the United States, a set of ideals including representative democracy, rights, liberty, and equality, in which freedom is interpreted as the opportunity for individual prosperity and success, as well as upward social mobility for oneself and their children.