"The Holy Spirit of the eternal God has come. The Spirit is here: living in us, sanctifying us, strengthening us, consoling us…. The center of all reality, the innermost heart of all infinity, the love of the all-holy God has become our center, our heart. True and absolute reality now lives in our nothingness; the strength of God vitalizes our weakness: eternal life lives in mortal human beings. The only thing that nightfall really means now is that we cannot grasp the meaning of the day that has dawned on us since Pentecost—the day that will see no sunset."

-- Karl Rahner, SJ