I received a connection to a Dragon during a healing session, but it took another year or so before the relationship took off.
I was riding a train into town and could feel his presence & energy building. Then right as I entered a tunnel... BOOM! There he was right in front of me, flying with me thru the earth.
It was so potent I could feel the strata of the rock flying past me. It was here that he burned a symbol into my mind to use for all kinds of things.
As the relationship grew, and I was allowed to connect to other elemental guides, I asked where these Dragons came from. They didn't feel anything like the other dragon energies & spirits I'd been around.
I was told that these Dragons had once been physical beings in another place, long ago, and had become post-physical. They have a city of light that can be visited, their hospital allows me to work on people's souls there and there are Dragon healers who will join in too.