Patience
In ancient times, new students often had to stand outside temples for days and days before they would be admitted to study zen. They had to show how great their patience was to the monks inside. We too must show great patience. We cannot expect to get what we want when we want it all of the time. Sometimes, one must wait. Snow does not melt and disappear immediately with the first ray of sun. To demonstrate patience is to demonstrate a working knowledge of the Tao.