SHAFAQNA – A believer must know that conscience is related to this world, all our consciences inform us that no one is eternal in this world and everyone will be departed from this material abode. The tools of this world do not remain for any one and cannot bring eternity for any one either. All the world’s enjoyments in different stages of life will be weakened and as human being gets older, his/her enjoyments are reduced and reach a point where he/she does not enjoy food or other natural desires any more. Isn’t this the conscience of human beings? Then what type of target is this (meaning the world) that human being chooses for himself/herself ?
 Rasael Bandegy by Ayatollah Sheikh Mojtaba Tehrani, Page 219.