When the red blood cells are tender, soft, solute, fluid, it seems that they are then able to move in similar spiral paths to that of spirits introduced into a society, and likewise in fourfold measures [1031]. The blood cells seem in this case to flow, or at least to endeavor to flow, in similar gyres, as is evident from their shape. And anyone who does not, or cannot, move in the same gyres, is banished from the company, or from the circle, and is agitated as spoken of earlier [1015-16, 1033-5]; for the gyre is not a simple gyre, but a whirling circle.