Agape is the love of God operating in the human heart. When we rise to love on the Agape level, we rise to the position of loving the person who does the evil deed, while hating the deed the person does.
Having the faith to take life one piece at a time- to live it in the knowledge that there is something of God in this for me now, here, at this moment- is of the essence of happiness. It is not that God is a black box full of tests and trials and treats. It is that life is a step on the way to a God who goes the way with us. However far, however perilous.