Alhamdulilahi and blessings and peace be upon our beloved prophet Muhammad and his family and Companions. The Almighty Allah said:-
ٱعْلَمُوٓاْ أَنَّمَا ٱلْحَيَوٰةُ ٱلدُّنْيَا لَعِبٌ وَلَهْوٌ وَزِينَةٌ وَتَفَاخُرٌۢ بَيْنَكُمْ وَتَكَاثُرٌ فِى ٱلْأَمْوَٰلِ وَٱلْأَوْلَٰدِ ۖ كَمَثَلِ غَيْثٍ أَعْجَبَ ٱلْكُفَّارَ نَبَاتُهُۥ ثُمَّ يَهِيجُ فَتَرَىٰهُ مُصْفَرًّا ثُمَّ يَكُونُ حُطَٰمًا ۖ وَفِى ٱلْءَاخِرَةِ عَذَابٌ شَدِيدٌ وَمَغْفِرَةٌ مِّنَ ٱللَّهِ وَرِضْوَٰنٌ ۚ وَمَا ٱلْحَيَوٰةُ ٱلدُّنْيَآ إِلَّا مَتَٰعُ ٱلْغُرُورِ [الحديد ٢٠]
Know that the life of this world is but amusement and diversion and adornment and boasting to one another and competition in increase of wealth and children - like the example of a rain whose [resulting] plant growth pleases the tillers; then it dries and you see it turned yellow; then it becomes [scattered] debris. And in the Hereafter is severe punishment and forgiveness from Allah and approval. And what is the worldly life except the enjoyment of delusion. [Surah Al-hadid 20]
The Almighty Allah tells about the reality of the world and what it is, and explains its purpose and the purpose of its people, that it is a play and amusement, with which the bodies play, and the hearts play with it. In front of them there is a promise, and you see them have taken their religion to play and amusement, unlike the people of vigilance and the workers of the Hereafter, for their hearts are full of the remembrance of Allah, his knowledge and his love, and they occupied their time with actions that bring them closer to Allah, from the minor and transgressor benefit.
so you believer compete with what brings you closer to Allah, and took the means that lead you to Allah, and if you saw someone who multiplied and compete with you with money and children, try to compete with him with righteous deeds.
Then Allah gave an example to the world with a catastrophe that descended on the ground, and it mixed with the earth plant from what people and cattle eat, Allah says:like the example of a rain whose [resulting] plant growth pleases the tillers; then it dries and you see it turned yellow; then it becomes [scattered] debris.
As for the work for the Hereafter, it is the one that benefits and is saved for its servant of Allah, and it accompanies the servant forever. That is why Almighty Allah said:
* وَفِي الْآخِرَةِ عَذَابٌ شَدِيدٌ وَمَغْفِرَةٌ مِنَ اللَّهِ وَرِضْوَانٌ. And in the Hereafter is severe punishment and forgiveness from Allah and approval.
That is, the state of the Hereafter, what is devoid of these two matters: either the severe punishment in the fire of Hell, and its shackles and chains and horrors for whom the world is his goal and the end of his demand, so he dares to disobey Allah, deny the revelations of Allah, and disbelieve what Allah blesses. As for forgiveness from Almighty Allah for bad deeds, removal of punishments, and satisfaction from Allah, the one who has permitted him with it will be permissible for those who know the world and strive for the afterlife.
All this is something that calls for asceticism in this world and a desire in the Hereafter, That is why Allah said:
*وَمَا الْحَيَاةُ الدُّنْيَا إِلَّا مَتَاعُ الْغُرُورِ
*And what is the worldly life except the enjoyment of delusion.
That is, it is nothing that he enjoys and benefits from, and he invokes needs, and only the people of weak minds who are deceived by livelihoods are deceived by vanity.