Imam Ahmed Alhasan احمد الحسن a.s said
And the physical world surrounding the body of man is divided into: Inanimate objects, plants, animals and the rest of the other people. And the relationship of the people with it (the world) is either appropriate or inappropriate. So they – for example – loves ownership of the land, gold, silver, transplantation, animals, to spend, and fulfilling their desire with the opposite sex.
{Beautified for people is the love of that which they desire – of women and sons, heapedup sums of gold and silver, fine branded horses, and cattle and tilled land. That is the enjoyment of worldly life, but Allah has with Him the best return.} {The Holy Quran Surah ‘Ali Imran:14}
While they hate exposure to damage, such as being killed on the battlefield as a result of Jihad (Fighting in the way of Allah), which is a possible outcome.
{Fighting has been enjoined upon you while it is hateful to you. But perhaps you hate a
thing and it is good for you; and perhaps you love a thing and it is bad for you. And Allah
Knows, while you know not.} {The Holy Quran Surah al-Baqarah:216}
It must be clarified that this world with regard to the Hereafter is harmful, therefore, do not ever gather love for it in the hearts of man [1]. For verily, they are in two opposite directions and if a person turns to one of them, he gives his back to the other one, and it is not possible for the people to gather this world and the Hereafter together in their eyes or in their heart. The Almighty said:
{Whoever desires the harvest of the Hereafter – We increase for him in his harvest. And
whoever desires the harvest of this world – We give him thereof, but there is not for him
in the Hereafter any share.} {The Holy Quran Surah Al-Shuraa:20}
And The Almighty said:
{Whoever should desire the immediate – We hasten for him from it what We will to whom We intend. Then We have made for him Hell, which he will [enter to] burn, censured and banished.}
{But whoever desires the Hereafter and exerts the e”ort due to it while he is a believer –
it is those whose e”ort is ever appreciated [by Allah ].}{The Holy Quran Surah Al-Isra:18 & 19}
In this is the formulation of the physical surroundings of the human being and the Nafs (Self) of the human being – In particular the gaps and points which are weak and are present within it – that is the weapon of the devil (l.a).
The Strive (Jihad) Is The Door Of Paradise
قال الامام احمد الحسن ع
ولابد من بيان أنّ الدنيا بالنسبة للآخرة ضرّة لا تجتمع معها في قلب إنسان أبداً ، فهما في اتجاهين متقابلين إذا التفت الإنسان إلى إحداهما أعطى ظهره للاُخرى ، ولا يمكن لإنسان أن يجمع الدنيا والآخرة في عينه أو قلبه ، قال تعالى:
﴿مَنْ كَانَ يُرِيدُ حَرْثَ الْآخِرَةِ نَزِدْ لَهُ فِي حَرْثِهِ وَمَنْ كَانَ يُرِيدُ حَرْثَ الدُّنْيَا نُؤْتِهِ مِنْهَا وَمَا لَهُ فِي الْآخِرَةِ مِنْ نَصِيبٍ﴾.
الجهاد باب الجنة ص 12
http://www.almahdyoon.org/arabic/documents/books-saed/Aljihad-bab-aljanna.pdf
First Mahdi : Yamani : Ahmed Alhasan 