Well, I guess I can speak from my personal experience.
I grew up as a catholic and after the death of both my parents I became an atheist who eventually got back to faith after a long time. How did that happen? Why did that happen? Why didn’t God show up when I asked Him to?
Most of these questions have been answered already in previous posts, and in many of Ravi’s talks, but all I can say is that God had never left me. I spent the past years being conflicted: I felt I needed God, but I kept denying that to myself (at least on a conscious level). Eventually I started looking around and God was right there for me to see, all I needed was to pay attention.
You see, I think He manifests himself in different ways, depending on each case. For me, I realized He calling me back to Him when I started watching Ravi’s talks on YT – my curiosity brought me there, I was seeking the Lord and the Lord gave me what I wanted. Now I became a believer once again, and I am proud of saying that.
If people expect God to appear through a vision, through a burning bush or something like that, they are terribly wrong: most of us don’t really know what is best for them, some would get afraid or even terrified of seeing Him appearing to us, some would still be skeptic, they would claim they have hallucinated and others would surely “want more”, in an endless cycle.
God listens and answers our prayers, when? It is up to Him to decide, after all it’s part of His greater design, something we are not capable of understanding. But God shouldn’t be craved only for the purpose of asking him favors and expecting them to be fullfilled: that’s opportunism. He is not a clown who puts up a happy face just to make us laugh. Those who TRULY seek Him will find Him at some point, and that’s exactly what happened to me: no visions, no flashing lights, no angels descending to cheer me up. It was something more subtle and intimate.
Now, every single time I look outside the window, I see Him. He is the gentle breeze that blows through the fronds, He is the pond that reflects the sky, He is the sky, He is everything and He is right there, hiding and not hiding at the same time. Start looking around you with amazement and wonder, look at how marvelous things are and you will eventually stop asking for a sign.