LINE represents one of six thematic and biochemical increments of progression within the Hexagram or Gate. There are 64 hexagrams with 6 lines each, totalling 384 lines all together. Each line measures 56 minutes, 15 seconds of arc, taking about 24 hours to pass through each Line. An open line symbolizes Yin or feminine/intuitive energy. A solid line symbolizes Yang or masculine/assertive energy In Gate order the Lines are