Movements Along the Bronchial Conduit : Creation, Destruction, Day and Night

 The bronchial conduit is regarded as the sun in the same sense as it is regarded as a dik gaja. It is in the sense of "anatomical compass." The bronchial conduits illuminate the interior of the lung, as it were, by making clear the "directions." As the bronchial lotus expands and unfolds, we have the movement of day synonymous with vivification and creation; and as it contracts and folds back, we have the movement of destruction and expiration of the universe. 

The movement of day which is from the hilum of the lung to the region of the acinus, is also the path taken by the oxygen molecules to reach the respiratory zone and, therefore, matches beautifully with all the vivifying aspects associated with "day;" while the movement of night which is from the acinus to the hilum – the path taken by the molecules of carbon-dioxide to exit from the lung – is fittingly described as a movement of destruction. Not only does this movement finish off the bronchial tree anatomically but, physiologically also, it is associated with the carrying of a deadly substance (carbon-dioxide). It also ends a cycle of inspiration and expiration; and the creation of a "new" world is set to begin with a new cycle.