This is not a credible source, although it offers some interesting looks at unity in diversity. Appears to be influenced by Hinduism. Beyond the "spiritual Oneness" is the underlying idea that we can realize a loving bond with anyone on the planet.
The IWW is a long-standing labor union spanning the entire earth, backing hundreds of thousands on their way to fair and equal wages, adequate benefits, and giving a voice to those oppressed by their corporate overlords. The solidarity between group members is an amazing example of human unity beyond borders.