الإسلام دين رب العالمين
This is the most significant question ever, and the most important question a person have an answer to.
Our Lord is the One Who created the heavens and the earth, sending down rain from the sky to nourish the fruits and trees as food for us and the animals we feed on. He is the One Who created us, created our predecessors, and created everything. He is the One Who made the night a time for sleep and rest, and the day a time for seeking sustenance and subsistence. Moreover, He is the One Who subjected to us the sun, the moon, the stars, and the seas, and also subjected to us the animals from which we eat and benefit from their milk and wool.
The Lord is the One Who created the creation, and He is the One Who guides them to the truth and to righteousness. He looks after the affairs of every creature, providing for them, and has ownership of everything in both this worldly life and the Hereafter, and everything apart from Him is His possession. He is the Living One Who does not die or sleep, and He is the All-Sustaining by Whose command every living thing is sustained, and He is the One Who has mercy over all things, and He is the One to Whom nothing is hidden on earth or in heaven. There is nothing like unto Him, and He is the All-Hearing, the All-Seeing, and He, above His heavens, does not need His creation, while His creation needs Him, He does not indwell in His creation, and nothing of His creation indwell in Himself, the Almighty. He is the Almighty, having fashioned the physical world with its intricately balanced systems, spanning from the workings of human and animal bodies to the celestial systems of the universe, including the sun, stars, and beyond.
And everything that is worshiped besides Him possesses neither the capacity to benefit nor harm itself, so how can it benefit those who worship it or ward off harm from him?
His right upon all people is to worship Him alone and not to associate partners with Him. Acts of worship are not to be directed towards any human, object, celestial body, or entity other than Him. Rather, devotion should be solely dedicated to God, the Lord of all worlds.
People have the right upon God, if they worship Him, to grant them a good life in which they find safety, security, peace, tranquility, and contentment, and in the afterlife, to admit them to Paradise, where there is enduring bliss and eternal life. And if they disobey Him and disobey His command, He will make their lives miserable and sorrowful, even if they think that they are in happiness and comfort. In the Hereafter, He casts them into the Fire from which they will not get out, and they will have therein eternal torment and eternal immortality.