GRATITUDE is a choice that becomes a habit. It is a major ingredient in the alchemy of transformation and is closely related to love... Gratitude creates a combustion of energy that powers our living cells. That's why all spiritual traditions teach the importance of gratitude. It certainly isn't because the deity needs any reassurance. Rather it's because when we are in the state of gratitude, we're affirming our faith in our own highest good and denying authority to the paralyzing, constricting energy of fear.
Work is work and there's harmony in it when the dignity it deserves is allowed to thrive naturally. The greatest teaching manual labor provides a contemplative practice is that there is no separation between work and prayer: work is prayer and prayer is work.