The grace of God. That's the one and only answer Tyler Perry has when it comes to how you can be successful. That, along with believing in yourself and never letting go of your dream.
"You can plant seeds all day long... and nothing happens. When a seed is planted in the ground, all you can do is water it. You cannot control the sunshine. You cannot control the weather, and you cannot control whether the locals will come and try and destroy it. All you can do is plant your seed in the ground, water it, and believe."