Lava is the physical embodiment of fire. It started as molten Lava and formed into rock. It is the only stone that is a physical form of what was once solely fire. It is an incredibly powerful stone for anyone born under a fire sign in their astrology, or for anyone who needs more fire in their lives. It can be very useful for those who are indecisive, timid, or who generally feel weak. Lava rock can also help one develop stronger ties with the earth because it was once one of the elemental forms fire and has now transmuted to another elemental form earth.