Fire comes in many forms, from stellar to torches & even dragons’ fire (etc), but fire is fire & fire is a purifier besides other things.

Fire has it’s multiple purposes, but in energy work, it could be used to purify internal energies for healing at a microcosmic level. Fire could be channeled from our universe (through dragons’ breath) to break down negative energies then expell the negative energies to aid in healing. Without breaking down the negative energies, they are like viruses that attatch them selves to the health system like parasites, but when broken down they dissolve & are pushed out of the health system.

When disciples lack the ability to channel universal energies like dragons’ fire, they could contribute to dragons for the dragons to work & channel the energies for their disciples to aid in healing.

Energy work upgrades are required to transfer energy into others, like a bird must upgrade to fly higher & faster while scouting for others or a fish must upgrade to swim deeper into the ocean’s trenches while scouting for minerals. Any other animal must contribute to the animal they need for its service, since the others cannot preform it.

Dragons must upgrade in energy practices to work in advanced works for those that require their services & the self. Basics could aid the adept or novice dragon to a certain degree, but it won’t aid others as well.

Note: Dragons’ fire is more than symbolic & isn’t described in this sanctum like in folk lores or hollywood fictions. Although it is also symbolic & only fire creatures such as dragons (for one example) know how to channel such energies for healing practices. Caution is advised to not meddle with fire of any type, it could cause harm or death.