Certainly nothing man can do as work has any eternal significance to it if it is not done out of a relationship with an eternal God. Man is a spiritual being, and if what he does has not come from a spiritual perspective it has little value to it. Worship frames everything in our lives by giving significance to everything beyond a materialistic framework. God desired fellowship with Adam before sending Adam into the garden to work it. The purpose of this commandment was to prevent man who worked most of the week from losing the spiritual dynamic to his life and thus the purpose to his work and life.
Worship renews the spirit as sleep renews the body.
It is resting in God's love and cleansing power. A study was made at Harvard University of the effect of meditation on older people. They discovered that meditation lowered blood pressure, improved mental function, and extended the life span. While we may not all agree on transcendental meditation, Christians have long believed that meditation in worship made life deeper if not longer, and richer, and fuller. Too often we fail to understand the significance of worship, so many see it as unimportant since we do so many of the same things over and over in the same way when we worship.