One day, all who know the Lord as Saviour will cease from their labours. It will be a time of eternal rest experienced only by those who are born again.
Every man requires rest from his labour. Failure to take time away from life's pressures eventually take time away from the sum total of a man's years.
The world is driven by self-preservation and self-promotion. Individually, the natural man is guided by self-serving motives. This should not be true of saints.