The title of this book symbolizes to some extent the great obstacles and challenges that every person must face on the way to reach success. It especially applies to the life of immigrants who have ventured to come out of their place only to face a society that is less tolerant and less susceptible to the needs and sufferings of their fellowmen. The walls that immigrants face come in different varieties and shapes; some are cultural, some are social, some are mental, some are emotional, and some are even physical walls, such as those that divide many nations now. All these and more constitute the obstacles and challenges that every immigrant must face in their search to better themselves.