Visceral sensations also originate from receptors in the blood vessels—as sufferers from migraines know all too well, the abrupt dilation of blood vessels (after strong constriction) causing their excruciating pain. However, we are also receiving all sorts of other ambient information from our blood vessels. We feel relaxed and open when our blood vessels and viscera gently pulse like jellyfish, causing sensations of warmth and goodness to surge through our bodies. When the vessels and viscera are constricted, we feel cold and anxious.
