Miracles are the Universal means to consciously move belief into faith. Once belief has been given to faith, miracles happen. If belief is not given to faith, miracles do not happen.
Faith is the substance of things hoped for. What everyone is hoping for is what they believe will make them happy. When we believe we know already know what will make us happy, and refuse to give up what we believe to faith, miracles will not happen. However, if we we are willing to release our belief in happiness to faith, a miracle will translate our personal belief into a higher frequency, where hope can be translated into truth, and delivered back to us.
The problem is we do not speak or understand the Universal Language of Love. We believe in love, but we do not understand it because we do not speak within the same frequency that Love speaks. If we did, we would not need a miracle to explain the substance of our hope in terms that we could not express through personal belief. This is the purpose of miracles; to explain what we do not know how to explain because our belief does not vibrate within the same frequency that Love does.
Luck plays no part in the ability to go through a green light and stop at a red one. When we are not consciously in control, something else is. The unconscious mind that stops at the red light is under the direction of a miracle, and the unconscious mind that goes through a green light is also under the direction of a miracle. That we are often unconscious of even stopping for a red light indicates that something else is in charge. This also makes a good case that there are no random events.