38-27
And We did not create the sky and the earth and whatever is between them in vain, that is the opinion of those who do not believe, so sorrowful will be the state of those who do not believe, due to the fire.
The universe has been created for a set purpose i.e. to test mankind 11:7
38-28
Shall We make those who believe and do righteous works like those who cause corruption in the earth? Shall We make those who keep themselves in limits like those who exceed the limits?
The good and the bad are not equal.
38-29
A blessed book which We have sent down to you that they may reflect over its signs and that those who understand may be mindful.
We should reflect on the verses of the Quran, understand them and be mindful i.e. implement the orders contained in it.