Moves steadily and continuously in a current or stream; proceeds smoothly and readily.
From Old English 'flowan', related to Old Norse 'floa' and German 'fliessen'. Indo-European root 'pleu-' meaning to flow or swim, shared with 'flood' and 'float'.
The concept of 'flow state' in psychology describes when people become completely absorbed in activities - this modern usage perfectly captures the ancient meaning of smooth, uninterrupted movement, just applied to consciousness rather than water.
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