Check for any common themes in Nath teachings—asceticism, Kundalini yoga, meditation practices. Satavisha might be a term from Sanskrit, maybe related to 100 or 700 (Sat means hundred, Vish means 700 in some contexts), but not sure. Maybe Satavisha is a specific text name. If not, perhaps the user made a typo. Alternatively, maybe Satavisha is a typo for a known term, but assuming it's correct. Maybe it's a specific work by Bapji Maharaj that's less known.