The Challenge of the Quran is an invitation for human hearts to echo the message of the Quran; to see how all questions and problems dissolve to give peace of mind, in the light of the Holy Book. Verily, in the creation of the heavens and the earth and the alternation of the night and day, and the ships which sail through the sea with that which is of use to Mankind, and the water (rain) which Allah sends down from the sky and makes the earth alive therewith after its death, and the moving (living) creatures of all kinds that He has scattered therein, and in the veering of the winds and clouds which are held between the sky and the earth, are indeed Ayat (proofs, evidences, signs etc.) for people of understanding. Surah al-Baqarah, 2:164