Sitting in silent worship is a way of praying. That's what the Bible says. That's what Jesus was doing on the mountainside in the night; waiting for God, waiting with God. Waiting is a spiritual and religious practice that is 3000 years old - maybe older. The Jewish Bible is full of references to waiting for God in the silence. The way we take in this silent waiting kind of prayer is often an experience of absence. Most of us can attest to the fact that the absence of God is a religious experience. On the other hand, sometimes we experience God's presence. In the silence the spirit shapes the clay - like the spring breeze wakes creation to new life.
As Jesus said, God's grace is like the yeast in the lump of dough. You and I are the lump. Waiting for God is a practice that enables a deep new life to grow in us. This new life is what Resurrection is all about. The grace - the power - the life - and the love of God take root in us like a seed. Classically this has been called the rebirth of the soul. This is what is meant by the phrase "Christ may be in you."
This is Easter. The time for the rolling away of the great stones that block the entrance to our beings. Blocked, we are in a condition of spiritual death. Unblocked, we are open to God's newness, to a life more abundant. He is risen - we are risen.