There is nothing like lucky and unlucky or even found to be but when something is stressed upon and put into our head, it becomes true and we are convinced that it is so. If in our head, we consider that number as lucky, it will be a lucky number for us but if it is an unlucky number, even if it brings us good fortune, we will still consider it as unlucky.
Some make their logic by stating from the Bible that the one who betrayed Jesus was the 13th to join at the last supper. Some associate it with women menstruation based on a cycle length of 28 days, they roughly menstruate 13 times in a year, Some say that a coven consists of exactly 13 members which make that number unlucky.
No study proves that the number 13 is unlucky for any occasion but from early days, we are hearing about it and have nailed it in our head and whenever we hear, read or think of number 13, we feel it is unlucky, unauspicious and this phobia is now worldwide that no one wants to even live on the 13th floor, 13th room, vehicle with number plate 13, etc.
“The most important thing in life is to learn how to give out love, and to let it come in." — Morrie Schwartz