There is no such thing as an experienced meditator. Every breath must be as if it is the first, every step a fresh event. A beginner's mind leads to a sense of gratitude for everything, whether or not the desires of my ego have been granted or life is going smoothly. A grateful heart for the rushing currents as well as for the still pools puts the ego in its place. This attitude that grows out of increased awareness does not come easily in the face of difficulties, but it is worth cultivating over a lifetime.
Taking on the mystery is yielding to grace, letting go of all explanations, analyses, ideologies, self-images, images of God, agendas, expectations. Taking on the mystery is undergoing the finitude of years, hallowing diminishments, and living into the solitude of our own integrity. Taking on the mystery is undergoing the pain of learning that there are no empires favored by the Holy One: not the Roman, or the British, or the Soviet, or the American. Taking on the mystery is undergoing the grief of understanding that there are no theologies favored by the Holy One: not communism or capitalism, not Islam, Judaism, or Christianity. Taking on the mystery is acknowledging that we cannot name the mystery, though we try; we cannot claim the mystery, though we do. The mystery names and claim us, inviting us to take it upon ourselves as if we were God's spies.