Once the movement of fire has a clear purpose and focus, it can crystallize into solid form. The rocks and stones found in nature represent the solidified energy of the element of fire.
This energy can also be understood as physical manifestation. We may have a creative idea (spark) which we feed and grow (fire), then channel and organize (focus) and finally see manifest (crystallization).
The process of manifestation can be delicate, and if it is to endure it must be balanced.
This energy of nature therefore also contains within it the values of justice and balance, and is referred to as Xangô or Changó. The archetype associated with this energy is the just King who rules his kingdom in a fair and balanced way.