Unalomes - You go through all of the complications and hardships of life (the twists and curves of the tattoo design) and eventually come out a changed person on a clear path. These are very simple. I like the more complex ones because I think they are better representations of me and my life.
Various Unalome Spiritual Symbols. In Buddhism they are the visual image of reaching enlightenment. The path starts at the center of the spiral, the other spirals represent the struggles in life one has, while the straight line at the top means that they have finally found harmony.