Again, Ira raised her hand up and answered, "9 was considered as a sacred and holy number." Though Ira didn't see why it could not been used. A sacred number was even more special right? So it should have been used with even more emphasis on it as a lucky number.

She continued, "I think it is because of the fact that any number multiplied by 9 always reduces back to 9... so it was considered different..maybe"