Surah Al-Kahf, Ayah 8

Do not feel sorry because the Idolators do not believe Allah consoles His Messenger for his sorrow

فَلاَ تَذْهَبْ نَفْسُكَ عَلَيْهِمْ حَسَرَتٍ

(So destroy not yourself in sorrow for them.) 35:8

وَلاَ تَحْزَنْ عَلَيْهِمْ

(And grieve not over them.) 16:127

لَعَلَّكَ بَـخِعٌ نَّفْسَكَ أَلاَّ يَكُونُواْ مُؤْمِنِينَ

(It may be that you are going to kill yourself with grief, that they do not become believers.) 26:3 meaning, maybe you will destroy yourself with your grief over them. Allah says:

فَلَعَلَّكَ بَـخِعٌ نَّفْسَكَ عَلَى ءَاثَـرِهِمْ إِن لَّمْ يُؤْمِنُواْ بِهَـذَا الْحَدِيثِ

(Perhaps, you would kill yourself in grief, over their footsteps, because they believe not in this narration.) meaning the Qur'an.

It was said in verse 7: إِنَّا جَعَلْنَا مَا عَلَى الْأَرْ‌ضِ زِينَةً لَّهَا (Surely, We have made what is on earth an adornment for it) with reference to all living forms, vegetation, mountains, minerals and everything else present on the earth. They are its embellishment. That there are snakes, scorpions, beasts and many harmful and fatal things may lead someone to doubt as to how can they be called 'an adornment for it.' This doubt is unfounded because everything in this world considered harmful, fatal or plain bad may be so in a restricted sense but, in terms of the totality of creation, nothing is bad. Everything, no matter how bad, has been invested with many benefits by Allah Ta’ ala on other counts. The medical use of poisonous and fatal life forms in the interest of human beings is an example. Therefore, things that are considered even bad are not that bad in terms of the function of this entire universe.

‘Perhaps you may destroy yourself’—this statement shows what condition a preacher of truth is driven into by the intensity of his feelings, if he is serious and sincere in his mission. The call of truth which is very clear in reasoning, and which is made by one whose sincerity has reached such a pitch as to spark off serious discussion among the people. If, in spite of this, people do not accept it, then what is the reason for their rejection? The reason is the enticements of this world. The present world is so attractive that a man finds it difficult to rise above it. Therefore, he cannot grasp the importance of the call for truth, which seeks to wrest his attention from the glamour of this world and divert it towards a world whose glamour is not immediately visible. But, the attractions of this world are purely temporary. They exist till the period fixed for man’s trial is over. Thereafter, the glamour of the earth will be taken away, so much so that it will be reduced to the condition of a barren desert.