Vertical line stands for one person.

Vertical lines represent one person
It is a basic phallic symbol.

From Alchemy Zodiac Secret:
The vertical line signifies the soul striving for union and the divine. Man, alone in the animal kingdom, stands upright, so the vertical line represents the physical symbol of the number One, man striving toward spirit. It signifies the soul that strives for union with the Divine.

It is used as a signifier for place or measurement.

vertical lines for placement and measurement
It is the Axis Mundi, the world axis that connects heaven, the earth, and the lower regions.
From wikipedia:
The axis mundi (also cosmic axis, world axis, world pillar, center of the world, world tree), in certain beliefs and philosophies, is the world center, or the connection between Heaven and Earth. As the celestial pole and geographic pole, it expresses a point of connection between sky and earth where the four compass directions meet. At this point travel and correspondence is made between higher and lower realms. Communication from lower realms may ascend to higher ones and blessings from higher realms may descend to lower ones and be disseminated to all.

The spot functions as the omphalos (navel), (remember letter O’s omphalos?) the world’s point of beginning. The image relates to the center of the earth (perhaps like an umbilical providing nourishment). It may have the form of a natural object (a mountain, a tree, a vine, a stalk, a column of smoke or fire) or a product of human manufacture (a staff, a tower, a ladder, a staircase, a maypole, a cross, a steeple, a rope, a totem pole, a pillar, a spire). Its proximity to heaven may carry implications that are chiefly religious (pagoda, temple mount, minaret, church) or secular (obelisk, lighthouse, rocket, skyscraper). The image appears in religious and secular contexts. The axis mundi symbol may be found in cultures utilizing shamanic practices or animist belief systems, in major world religions, and in technologically advanced “urban centers”. In Mircea Eliade’s opinion, “Every Microcosm, every inhabited region, has a Centre; that is to say, a place that is sacred above all.” The axis mundi is often associated with mandalas.
It is the basic shape of the World Tree, Yggdrasil The Norse Mythology Tree of Life

Yggdrasil, Norse Mythology Tree of Life
The Cosmic Tree, or The World Tree
from Jungian Geneology:
The world tree is a motif present in several religions and mythologies, particularly Indo-European religions, Siberian religions, and Native American religions. The world tree is represented as a colossal tree which supports the heavens, thereby connecting the heavens, the terrestrial world, and, through its roots, the underworld. It may also be strongly connected to the motif of the tree of life.
“The alchemist saw the union of opposites under the symbol of the tree… the symbol of the cosmic tree rooted in this world and growing up to heaven-the tree that is also man. In the history of symbols this tree is described as the way of life itself, a growing into that which eternally is and does not change; which springs from the union of opposites and, by its eternal presence, also makes that union possible.” (Carl Jung, CW 9i, para. 198)


Hi, just started reading your AtoZ. Sorry I’m so late, hope to catch up this week. Well done you 😀
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Welcome! So happy to see you. Thank you :) I’ve been enjoying your posts very much.
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Be back online maybe tomorrow. Maisie in hospital 😩
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oh no :(
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I did Norse mythology today also.
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Wow.. Brilliant!👏👏
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Thanks Richa!
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