Mr. Briefcase’s search is a metaphor for the search that everyone goes through: the search for the meaning to life. The “key” to understanding life’s meaning. Who am I? Why am I here? I thought I knew who I was, but I forgot it in the process of searching. But the more you think about it, the harder it is to find the answers. Luckily we are not alone, and we always have people and things that accompany us, to make the search more exciting.