My son sent me a card once when I was working 12 hour days and was so exhausted physically and mentally. On the cover of the card was a woman who was trying to unlock her door while her arms were full of grocery bags and she had her purse strapped onto her shoulder plus she was carrying a brief case. To say she was harried would be putting it mildly. As she turned the key, coming out from under the door was the sound of "meow". Upon opening the card, you could see a cat standing by the door and looking up at her. She dropped everything and picked up the cat, nuzzled her face in its fur and smiled. That's what my cats do for me. Without even trying.