Unlike the views of the fundamental Muslims, Allah is not a definable and fixed concept. Focusing on the concept of God in Sufism (Islamic Mysticism) while examining the poetry of Rumi (a 13th-century mystic), this study presents an opposition to orthodox thoughts by picturing Allah's unwillingness to admit the closures of the systematic religion. The framework of Rumi's vision will be discussed in the context of Deconstruction with reference to Jacque Derrida's works.