Beautiful. I read your reply to ~LuxXeon explaining the process, but I don't feel any wiser about how you made it It sounds like an amazing collection of techniques you used!
Love this! How did you do it? Did you start with splines and loft the swirls, or a primitive shape and use the Graphite Tools to pull out the branches?
Downloaded the l system tool from the Splutterfish website. Made one. Made a sphere. Then created a particle system that went on the surface of the sphere. Used the mesher tool to make it an editable poly. Deleted the sphere after I made the particle system an editable poly. Twisted some and then brought it into Blender to render it.
L-Systems are great, and you really turned this one into an even more interesting shape. I wouldn't have guessed you started with LSystem here actually. Very good work! I've got two renders cooking now I think you might like.