Translations:Benutzer:Arian/Klett-Mini-Test/1647/en

The heart recollects and unites what has impressed itself upon the blood in the bodily organs out to the periphery of the body. In the heart, the in-flowing and out-flowing blood finds a self-active sheath that, rhythmically pulsing, keeps the blood capable of life. The other pole is the kidneys, which in another, polar way render the blood once again fit for life. They form a space into which the blood, as an arterial stream, steps out from the vascular system and — lifted free of the earthly-material substance processes, sifted and refreshed by the activity of the kidneys — a harmonious balance is created between the earthly-material and the cosmic-spiritual. Only after this «testing of heart and kidneys» does the blood remain capable of life.