Neighbours who live in the rocks, and still shape where roads go.
In Icelandic folklore the hidden people live in rocks, hills and lava fields, much like humans but unseen, with their own farms, churches and grievances. One folk tale makes them the children Eve hid from God. The belief is not a museum piece. Road projects have been rerouted or delayed over elf rocks, most visibly in the 2013 protests over a road across the Gálgahraun lava field, and a University of Iceland survey in 2007 found about six in ten people unwilling to rule them out. Alongside the landvættir, it is the clearest modern case of a spirit belief shaping public works.
The tradition asks one thing: leave their places alone. For some Icelanders this is still a living belief, so treat it as their culture rather than as a curiosity.
Sharing the world with us, ordinarily imperceptible, able to become briefly visible. The oldest and largest branch.
Degree of embodiment: 3, comes and goes
Scale, 1 to 5
5 is an ordinary biological body. 4 is physical but manifests oddly. 3 comes and goes. 2 is energetic or subtle. 1 is consciousness with no persistent form. Note that this tends to fall as a tradition ages.
F: pre-modern folklore
Source code
Inherited oral tradition with no author and no publication date, in several cases continuous to the present.
Reciprocal obligation
Tradition-side
The relationship is framed as exchange rather than encounter. Something is owed, offence has consequences, and the arrangement can be broken by carelessness, which makes casual experimentation a category error within the tradition itself.
Deliberate contact work
Read this first
The hazard in this subject attaches to the method, not to which name you aim it at. Ouija work, invocation, sustained channelling, induced hypnagogia, deliberate sleep deprivation and hypnotic regression are the practices associated with difficulty, and a session aimed at a benevolent civilisation is not safer than one aimed at something considered lower. What raises risk is doing it alone, doing it repeatedly, doing it while sleep-deprived, and doing it with an existing vulnerability to psychosis, mania or dissociation. People who get into trouble here overwhelmingly got there through practice, not through reading.
Who should be careful
Practice-side
Anyone with a personal or family history of psychosis, bipolar disorder or dissociative conditions, anyone in acute crisis, and anyone isolated from people who would notice a change in them. Intensive contact practice is destabilising by design (that is what it is for), and destabilisation lands hardest on people already close to an edge.