This has to be one of the most important questions you can ask. There are things that suggest the world must have been created by something very intelligent. For example, if the charge of a proton and electron were not exactly equal to each other the world would not have developed from the Big Bang. If the expansion rate of the universe was slower by just 1 part in a million million, the universe would have collapsed very early and would not exist today. I can't believe just "luck" caused it.
On the flip side, there is just so much evil in the world, like why do we have mosquitoes that give mostly innocent children malaria? Around 500 million people get very sick each year with close to 500,000 of them dying from it. I could go on with this argument.
It is a real mystery.