In the name of God, Most Gracious, Most Merciful
Peace be upon you,
Everyone is looking for happiness. But most look for happiness in the wrong places, such as the materials of this world.
Happiness comes from God, and is a quality of the soul, not the body. A successful person in this life, may have all the cars, houses, fame, and riches that can be imagined, but will still be unhappy if they don’t have God in their lives.
Worldly Materials Are Nil
[Quran 9:85] Do not be impressed by their money or their children; GOD causes these to be sources of misery for them in this world, and their souls depart as disbelievers.
[Quran 92:5-7] As for him who gives to charity and maintains righteousness. And upholds the scripture. We will direct him towards happiness.
[Quran 92:8-11] But he who is stingy, though he is rich. And disbelieves in the scripture. We will direct him towards misery. His money cannot help him when he falls.
[Quran 10:62] Absolutely, GOD’s allies have nothing to fear, nor will they grieve.
[10:63] They are those who believe and lead a righteous life.
[10:64] For them, joy and happiness in this world, as well as in the Hereafter. This is GOD’s unchangeable law. Such is the greatest triumph.
*10:62-64 Most people think that they have to wait until the Day of Resurrection before they receive their rewards for righteousness, or the retribution for wickedness. But the Quran repeatedly assures the believers that they are guaranteed perfect happiness here in this world, now and forever. At the end of their interim here, they go directly to Paradise (see Appendix 17).
The secret of happiness is in a well-developed and nourished soul. To be happy, we have to make a choice to be with God whole-heartedly, and nourish our souls through righteousness.
[Quran 20:130] Therefore, be patient in the face of their utterances, and praise and glorify your Lord before sunrise and before sunset. And during the night glorify Him, as well as at both ends of the day, that you may be happy.
Guaranteed Happiness Now and Forever
[Quran 16:97] Anyone who works righteousness, male or female, while believing, we will surely grant them a happy life in this world, and we will surely pay them their full recompense (on the Day of Judgment) for their righteous works.
[Psalms 1:1-2] Blessed is the one who does not walk in step with the wicked or stand in the way that sinners take or sit in the company of mockers, but whose delight is in the law of the LORD, and who meditates on his law day and night.
Reference: Living a Godcentric life for Happiness