[Pooya/Ali Commentary 31:2] The Quran is a book of wisdom and knowledge. Whoever seeks guidance from it receives it. As its wisdom is complete and perfect its guidance is thorough-leaves no aspect of material or spiritual life, individual as well as collective, unattended, and invariably leads to truth, goodness and salvation-and its practicability depends on the intellect and taqwa (awareness of the laws made by Allah in both the creative and legislative realms and its application in minutest detail in day to day life) of the person who puts it into practice. See commentary of Baqarah: 2 to 5, 177, and Ali Imran: 138. The availability of such an all-encompassing and comprehensive guidance is a mercy from Allah.