The worshippers of Apollo Soranus, after his cult had been subsumed by Apollo were called Hirpi Soranu[?] ("wolves of Soranus"). They were firewalkers[?].
... is a compound of "mat" (me) and "stha" (standing, staying at) and means "they are in me". "-aham" (I) in the second line is nominative. na caaham = "...and not ...