Work is the food for mindJust like food is essential for our stomach and body system to function properly work acts as food for our mind. An empty mind is devil's workshop it is said. Hence we need to feed our mind with food called work. If we starve our stomach we get to see a number of negative impacts like acidity etc. Similarly, if our mind is idle continuously it starts getting occupied by unnecessary thoughts, fears, irritation and we start developing negative traits like destructive nature, gossiping and unnecessarily criticizing others. But if we keep our mind occupied with work it remains busy in doing constructive things and does not get time and room to get entangled into negative things. Hence it is best to feed our mind with food called work so that it remains engaging and does not go in the wrong direction.
But does that mean we should constantly keep our mind occupied without rest? Sometimes we skip a meal or take light food to give some rest to our stomach so that it can function efficiently. In the same way, our minds also needs rest from being occupied and hence we listen to music or do meditation etc when the mind is tired.
But just as we cannot starve our stomach continuously similarly we should not keep our mind idle for a long time and engage it in work so that it works in the right direction.