I asked Abu Abdillah Ja’far ibn Muhammad, peace be upon him about the verse from the Qur’an: ’And those who strive with righteous deeds to the greatest extent and their hearts are filled with fear....’ (al-Mu’minoon. 23:60). He said: "That is their fear and hope. They fear that their acts may be rejected because of their sins, and at the same time, hope that they might be accepted from them."