A natural hot spring is an opening in the earth that connects to an aquifer below that is being heated by the geothermal system that exists below the surface. In this way, a hot spring first and foremost relates symbolically to emotional expressions that are of a more passionate nature and that bubble up from below the surface of consciousness. For the most part, since a hot spring is associated with relaxation and health, this is a very positive symbol relating to the benefits that can be gained when you allow feelings from below the surface of your consciousness to slowly and methodically surface and be expressed.
[1]