The south pole of the magnet stamps the organism with excitability and readiness: ready to flush, ready to bleed, ready to spark with electric-like pains. The patient is not crashing into destructive states but vibrating in a field of functional over-reactivity. This is seen in left-sided neuralgia with pains that dart like a current along tracks; in vivid, unrefreshing dreams that prolong daytime excitement; in palpitations that rise and fall with the room’s warmth or the mind’s stir; and in bright haemorrhages that start from small causes. The modality scheme is elegantly simple: worse at night, worse lying still in bed, worse warmth of room/bed, and better from cool, moving air and gentle continued motion. This polarity—heat and stillness excite, coolness and motion soothe—belongs to the remedy’s very source, a phenomenon of polarity seeking balance.

In the female sphere the remedy is particularly serviceable: menses early, profuse, neuralgic dysmenorrhoea on the left, pruritus with pricking, and a bearing-down uneasiness that eases with walking. In the head and extremities we find the same signature—left supra-orbital and left sciatica-like tracks that flare on lying down and abate while walking; scalp or skin prickling as from sparks; a sensory world turned up too loud. The mind is awake, able, and lively yet easily over-wrought; small noises sting, trivial worries amplify, and sleep is a theatre of bright dreams. Haemorrhages are bright and ready, not passive or purplish; after them the patient is weak but still labile, and often needs China or Ferrum when the vascular pendulum has been steadied. The remedy sits between Phosphorus (bleeding, sympathy, chest affinity) and Lachesis (left-sided congestion, heat, loquacity), but remains smaller, more electric-neuralgic and less systemic; it refines our aim when the totality distinctly points to polarity: left-sided, electric pains; night/bed aggravation; cool-air relief; and haemorrhagic readiness. Selecting M-aust. is the art of noticing this field of excitability and prescribing to restore equilibrium. [Hahnemann], [Clarke], [Hering], [Farrington].