Believers are aware of this, for they are aware that God is the real Possessor of all wealth and that He alone is the One Who gives and takes away. Difficulties and tests from God can bring good to believers, and it is important to remember that God is the real Possessor of all wealth and that He alone is the One Who gives and takes away. God may test us with the loss of wealth, but believers should not despair or exult in times of affluence, but rather show gratitude and conduct themselves moderately.
This is the key to understanding blessings and rewards, both in this life and the afterlife. Wealth can be taken away in an instant. Unbelievers, ignorant of the true purpose of life, experience great despair when this happens, not recognizing it as a warning from God. Believers, however, understand that wealth can be taken away for a greater good or a reminder, and serve as a reminder to put their trust in God. Life is full of tests and reminders from God, and although wealth may be taken away, the eternal blessings of paradise are incomparably better.
Believers and disbelievers alike should take heed that a long life is not necessarily a gift from God. Those who disbelieve should be aware that the extra time they have is not beneficial for them, as it only increases the chances for them to do more wrong. Those who pursue the temporary pleasures of this world without taking God and the Day of Judgement into account fail to understand the value of time they waste. Moreover, what one may perceive as "good" or "bad" may not always be so, according to God's statement.
Thus, it is important to be mindful of how one uses their time.