It is always attractive to make a comparison between mystics differing in their nature and formation; and a study of their experience, fundamentally the same, in its different interpretations, helps us to discover lights and shades, tones and accents, individual peculiarities that may escape our notice when we consider one mystic alone. This is so in the case of Catherine of Siena. Set by the side of other women mystics her world becomes more distinct, and her own figure takes on clearer outline. Compared with St Gertrude, for instance, she is more ecclesiastically-minded; compared with St Hildegarde, more positive; with St Teresa, more subtle; while perhaps she outstrips them all in enthusiasm and eloquence.