Do you sometimes stop for a moment and consider the fragility of this life? That what Allah عز و جل gave so easily, He can take in the blinking of an eye? Our time in this life and the hour, no, even the minute of our death have already been written by Allah, عز و جل and yet we continue our lives procrastinating and leaving things for tomorrow or next week or next year when we have no knowledge about whether we will even be alive at those times.
Indeed we belong to Allah and to him is the (ultimate) return.
Every soul will taste of death. Then unto Us ye will be returned. (Qur'an 29:57)
Abdullah Ibn Umar used to say: "If you survive till the evening, do not expect to be alive in the morning, and if you survive till the morning, do not expect to be alive in the evening." (Bukhari, Volume 8, Book 76, Number 425)