The bannik is the spirit of the Slavic bathhouse, demanding respect for a place of cleansing. Dream books read him as purification and as care taken with private, vulnerable moments.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.