فَاتَّقَىْ عَبْدٌ رَبِّهُ، نَصَحَ نَفْسَهُ، قَدَّمَ تَوْبَتَهُ، غَلَبَ شَهْوَتَهُ، فَإِنَّ أَجَلَهُ مَسْتُورٌ عَنْهُ، وَأَمَلَهُ خَادِعٌ لَهُ، والشَّيْطَانُ مُوَكَّلٌ بِه، يُزَيِّنُ لَهُ الْمَعْصِيَةَ لِيَرْكَبَهَا، وَيُمَنِّيهِ التَّوْبَةَ لِيُسَوِّفَهَا حتّى تَهْجُم مَنِيَّتُهُ عَلَيْهِ أَغْفَلَ مَا يَكُونُ عَنْهَا. فَيَالَهَا حَسْرَةً عَلَى كُلِّ ذِي غَفْلَةٍ أَنْ يَكُونَ عُمُرُهُ عَلَيْهِ حُجَّةً، وَأَنْ تُؤَدِّيَهُ أَيَّامُهُ إِلَى الشِّقْوَةِ!
So everyone should fear Allāh, should admonish himself, should send forward his repentance and should overpower his desire, because his death is hidden from him, his desires deceive him and Satan is posted on him and he beautifies for him sin so that he may commit it and prompts him to delay repentance till his desires make him the most negligent. Piety is for the negligent person whose life itself would be a proof against him and his own days (passed in sin) would lead him to punishment.