It is of no benefit for a man to gain the whole world if he loses his life, his soul. Possessions are useful only if one is alive to enjoy them.
فَٱلْإِنْسَانُ لَا يَنْتَفِعُ شَيْئًا إِذَا رَبِحَ ٱلْعَالَمَ كُلَّهُ وَخَسِرَ نَفْسَهُ ،‏ أَيْ حَيَاتَهُ .‏