SHAFAQNA (Shia International News Association) – To stay awake at nights and praying to Allah (SWT) will help to revive the heart.The purpose of this act is to keep alive the heart. A have a living heart is only possible through prayers and thoughts. On the contrary a negligent heart is a like a dead heart. A person who is engaged in anti-God activities and bad deeds is worse than a dead person .
 Al-Moraqebaat by Mirza Jawaad Maleki tabrizi, Vol.1, Page 125.