Pentagram symbol - representing the five elements of creation and it's attributes. Note : If you superimpose the vitruvian man figure over it, you see how it also represents the sacred geometry of body of man.
Candle light wards might also be another thing. I can see Tsava Leko having wards based on candles around their caravan. Though I think his own wards where originally dolls that he used to focus elemental powers into.
Not perfect but more or less a curate ∆ Abilities.Psychic abilities are said to be innate in all of us. There are natural feelers, healers, and seers among us who only need awakening and constant practice to fully develop their extra-mundane abilities.