For me it was the fallen state of the world that made me consider God. If one thinks too much about the world/society and its workings, the thought process will spiral down to cynicism. The goals that our world revolve upon fail upon further inspection. Gaining money? The idea that rich people just sit in mansions all day is a childhood dream. Rich people have a lot more to worry about and can't sleep since their assets are so great. And when they die, their kid could just be a spoiled brat that ruins everything, and if not them, maybe the grandchildren.
And it's not just goals in life too, there are an infinite number of ways a rational mind will find cynicism. For example: the role of government/politics, the meaning of the acquisition of knowledge, death and its inevitability for all people, the list goes on and on.
Eventually, the universe feels like a system. A circular gear that spins round and round, thinking it is accomplishing work when it is just wearing itself out until it doesn't work anymore. Generations come and go, but nothing really changes. Nothing we do is worth anything in the end.
And yet even in these rantings, the world feels like something more. Where is the survival value in things like art and music? Why does humanity seek to understand undefined things such as "soul", "passion", and "love"? Are all the moments that send chills up our spines and light our hearts on fire artificial? Is all of humanity simply deluding itself? No. I believe that the world isn't the circular prison it appears to be. I don't think that we exist simply to run in the race track that we fallible humans have created for ourselves. Because humanity is different. We're not just like any other animal species out there. This is where faith starts for me. A faith that humanity is different, and that the pursuits of the soul are not empty, that humanity can do something more. And why would I believe this unless there is some other force than secular logic? And what could that force be? The next string of questions lead me to God. I haven't looked back at the circular track I was running since.