'Luminous Bridges' is the title of a trilogy, a series which includes "Gears of Uriel, "Tyrian," and "The Ancient Light." 
The writing of these three books is a result of my own spiritual journey. It crossed my mind to use the metaphor of a path for the series name, but I would not presume to to tell someone 'the right path' to take for their own journey. After much contemplation, an illuminated bridge seemed more apt.
A bridge can take you from one place to another by means that might not otherwise be possible. Perhaps these novels might light the way across such a bridge, so the reader may continue on their own spiritual path.