User blog comment:Western Gen/Speculations for Season 13/@comment-115.133.123.112-20150526070420/@comment-10870881-20150602102326

3 represents 3 sides of a triangle. A 7 looks like an upside down nose, which sits below 2 eyes. 3 multiplied by 7 = 21, meaning that the 2 eyes become 1.

Illuminati confirmed.