[Pooya/Ali Commentary 50:5] If the disbelievers do not understand what has been made clear to them, their minds necessarily get into confusion, so at times they doubt and at times they deny altogether. All nature proves the absolute power, goodness and justice (orderliness) of Allah. The universe, with all the stars and planets and lights in them and laws of order, motion and harmony, is sufficient to convince an intelligent mind to believe in Allah and the boundless effects of His will. The round earth has been spread out as a vast expanse, kept steady with the weight of mountains. See commentary of Rad: 3; Hijr: 19; Hajj: 5. All these manifestations make a true believer contemplate, and he remembers them as clear evidence of Allah's power, goodness and justice. As Allah gives new life to a dead land, He shall render possible the resurrection. Aqa Mahdi Puya says: The Quran draws man's attention to the continuity of the creation in space and time to prove the certainty of resurrection. Thus life in its various stages is an evolutionary continuity.