Take some risks and enjoy life or you will never begin to live. This is the evident thesis in Harry Van Dyke's poem, Doors of Daring. This story tells of adventures that have been taken. Also it tells of people that don't explore and what will happen to them. He tells us this threw his extensive use of symbolism and imagery.

Harry Van Dyke expresses his thesis to take risks late in the first stanza. He writes, "With walls of Granite, steep and high." This is suggesting that you have to have fun and be fearless." "With walls of granite", this phrase is an example of the thesis because it is somewhere that you don't see every day. Also it could be representing that the granite walls are something that you need to break free of. The next line, "Steep and high", this means that...