This is good poetry. Every time we get or receive a card it makes us feel glad. The more we receive makes us think about our popularity. Are we growing popular among people or is it how they perceive us?. The author receives card's from a Dan, a Stan or a Joe. He wonder's why they send his card's. An email does not require payment, unlike card's that have to be paid for. More so if we have to send back one or reply to one's we receive. He also wonder's if alien's are behind these card's. He wonder's if it is the gray's and he say's so to his wife. The poetry makes us think about the thought's that go in our mind's if we do not know where or how we receive letter's or card's in our mailbox.