Marguerite is the fourth person Eddie met in heaven, which Eddie meet Marguerite in the wedding. In the story, Marguerite reveals to Eddie that wedding receptions are her version of heaven because weddings symbolize love and possibilities. So, wedding is the faith of love. The trust that both people have for each other and they decide to live together and overcome all the difficulties, which result in marriage.
The power of love is the fourth lesson Eddie learn from her wife. Eddie learn about the eternity of love, which even though Marguerite already died, but the love that she have for Eddie is still there forever. The love that the couple have for each other is true love. As you can see that author had mentioned that Eddie was thinking about Marguerite. Eddie friend also know that he love his wife so much too.
Eddie think that his life was useless. However, this conflict is resolved when he meets Tala in heaven. She helps him realize that his life did have a purpose. His maintenance job was to keep the kids safe. He also give the happiness to the kids and family that come to Ruby Pier