In ayah 69 of surah Ya-Sin, Allah declares that the Holy Prophet (SAW) is absolved from poetry when He says: "And We have not taught him (Muhammad) poetry, nor is it meet for him. This is naught else than a Reminder and a Lecture making plain." The fact that why in this ayah, besides the denial of teaching poetry to the Prophet (SAW), even his very soul is considered absolved of poetry is a point about which commentators have offered different opinions. Analyzing the word "poetry" denotatively and connotatively as well as pointing out the beliefs of Arabs at the era of the Qur'an's revelation, the present study analyzed this ayah and concluded that the specific viewpoint of revelation-era Arabs towards poetry and the belief in the role of demons in the inspiration poets draw from poems is the reason of absolving the Prophet (SAW) and the Holy Qur'an form poetry because demons do not deserve to be mediators in the revelation of the Holy Qur'an to the Prophet (SAW) nor the Prophet deserves to receive the Holy Qur'an as "poetry" from demons.