Proper understanding of the Qur'an does not require going beyond the Arabic grammar rules. The writer attempts here to study the rules of understanding the Qur'an. Thereby, he brings up the issue of the Qur'an's language as being Arabic; the exterior and the interior meanings of the verses; the meaning of ta’wīl (esoteric interpretation); and some examples of the interpretive meanings existing in traditions, and concludes, upon analyzing them, that understanding the Qur'an is thoroughly possible within the framework of the Arabic language rules. Similarly, he argues that the interior meaning of the verses or ta’wīl does not denote ignoring the language rules; rather, it has specific meaning that is consistent with the Arabic literature.