Vibes
'vibes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for auras that I've seen before include "Distinctive atmospheres around certain people" , "coloured glows" , "Distinctive characters" , "Atmospheres that seem to surround people" .)
(Other definitions for atmosphere that I've seen before include "Spirit" , "Surrounding ambience" , "Feel" , "We are always enveloped in this" , "Air" .)