Hazrat Mufti Ebrahim Salejee (Daamat Barakaatuhu) mentioned:
When Nabi (sallallahu ‘alaihi wasallam) explained to the Sahaabah (radhiyallahu ‘anhum) that a time will come when the disbelieving nations will invite each other to attack the Muslim Ummah like how people are invited to a meal, they asked the reason for this. Nabi (sallallahu ‘alaihi wasallam) explained two problems: (1) Love of this world, and (2) Dislike for death.
Unfortunately, this is the condition we find ourselves facing. This is what needs to be remedied and thereafter all our problems will be solved. One way of remedying this is to frequently think of death for at least 15 – 20 minutes daily. If we become afraid at the thought of death and the spectacle of the grave etc. then think of the great rewards in Jannat.