In Fig. 25 we see an interesting though unpleasant thought-form. Its peculiar brownish-green colour at once indicates to the practised clairvoyant that it is an expression of jealousy, and its curious shape shows the eagerness with which the man is watching its object. The remarkable resemblance to the snake with raised head aptly symbolises the extraordinarily fatuous attitude of the jealous person, keenly alert to discover signs of that which he least of all wishes to see.