I came across these statements of William Barclay in his commentary of Mark

 The rhythm of the Christian life is the alternate meeting with God in the secret place and serving men in the market place.

The Christian life is a continuous going into the presence of God from the presence of men and coming out into the presence of men from the presence of God. It like the rhythm of sleep and work. We cannot work unless we have our time of rest; and sleep will not come unless we have worked until we are tired.

I loved this one, may use it on Sunday???