This sonnet describes the speaker's love for stray cats and their desire to help the homeless felines. The speaker has cared for many stray cats over the years. However, they often see more cats in need, left out in the cold and snow. Even in heaven, the speaker does not think they could ignore a lost kitten crying outside in the cold. The speaker questions how their good deed of letting the cat inside could be considered a sin by Saint Peter. The poem conveys the speaker's compassion for homeless cats.