I do not believe in a God who intervenes and makes things like happy coincidences happen -- the existence of such a being really makes it problematic when happy coincidences fail to happen and, instead, horrible awful evil things happen.
However, I believe that all that exists, including us, is a single organic and internally related totality -- everything is connected with everything else and is part of the same glorious system, on every level from quanta to galaxies and human life. That system is pretty close to what I personally call "God."
Human beings are -- as far as we know now -- unique in that we can consciously choose how to perceive the world and how to interact with it. We can open ourselves up to the working of the system, to allow ourselves to flow with it and be surrounded and filled by it through oriented our minds and our actions to harmony with the totality. We can also close oursevles off in selfishness and work against the grain, which leads to friction, suffering, and misery.
So, I experience these happy coincidences from time to time -- I think everyone does to some degree or another. I see them as momentary flashes of light through the haze of human consciousness that briefly illuminates the fundamental order, harmony, and unity of existence.
We are all in the gutter, but some of us are looking at the stars.
~ Oscar Wilde