They serve divinity and humanity. They are servants of God and man. They are faithful servants always on duty. They do not go on break/recess. Twenty four hours a day, seven days a week, three hundred and sixty-five days of the year, you will always meet them at their duty posts. They do not go on sabbatical leave. These ones have eyes too sharp for sleep and bodies
too strong for slumber.
Who are they? What can they do for the divine and humans?