The word Sufi originates from a Persian word meaning wisdom and wisdom is the ultimate power. The following survey tries to explore this concept in the works of Rumi and its impact on the western writers and poets particularly Whitman. It tries to show how Whitman inspired from Rumi and came to be the messenger of Sufism in his poems. These poems reveal the depth of Sufi spirituality, the inner states of mystical love, and the Unity of Being through symbolic expressions. They also express aspects of Sufism and of traveling the Sufi path inaccessible in prose writing