To worship God means to forget the self; an extremely difficult, though possible, act. What takes place in a moment of prayer may be described as a shift of the center of living–from self-consciousness to self-surrender.
From: Abrahma Joshua Heschel, The Insecurity of Freedom
The meaning of the Sabbath is to celebrate time rather than space. Six days a week we live under the tyranny of things of space; on the Sabbath we try to become attuned to holiness in time. It is a day on which we are called upon to share in what is eternal in time, to turn from the results of creation to the mystery of creation; from the world of creation to the creation of the world.
From: Abraham Joshua Heschel, The Sabbath, p 10