That poem is from the most powerful and important book on wealth known to man.
Think and Grow Rich
The poem is a beautiful reminder that if you set a goal, and desire the achievement of that goal, you will overcome all obstacles, you will achieve your goal.
Does your desire rise to the same level as your financial goals? If you have lofty financial goals, you better have the unwavering desire. If not you need to lower your financial goals to match your level of desire.