According to Osho, no—do not hunt for a 'chief characteristic.' That is Gurdjieff’s retail method, slow and fragmentary. Instead, transcend the whole mind at once by witnessing every movement—anger, greed, jealousy, violence—without identification. Be the aware presence in which traits arise and pass. This wholesale witnessing short-circuits analysis, avoids endless discipline, and opens the direct door to freedom and enlightenment now.
Don’t choose one bad habit to fix; quietly watch all thoughts and feelings come and go without calling any of them ‘me.’