Friday the 13th~ one of my favorite days! Most people fear it, due to their superstitions.
The fear of Friday the 13th is called paraskavedekatriaphobia or paraskevidekatriaphobia, a specialized form of triskaidekaphobia, a phobia (fear) of the number thirteen.
Thirteen may be considered a "bad" or "unlucky" number simply because when a group of 13 objects or people is divided into two, three, four or six equal groups, there is always one leftover, or "unlucky", object or person. 13 = (1+3) = 4 = closure of our reality program or the evolution of consciousness back into light.
4 also references the number 40, given significance throughout history. Year 40 was a leap year starting on Friday of the Julian calendar.
13 is a Fibonacci Number (F7).
13 is the 6th prime number. 6 is sometimes considered an unlucky number due to its association with 666 (18=9=closure).
13 is the second Star Number.
Reality is myth, math and metaphor created by the patterns of Sacred Geometry that repeat in life's cycles called Time and Space. 12 Around 1 or 13