Everything spiritual is very complicated..but the "God source" or "Central Sun" as angels call it will be aligned with earth on that day. It will put in motion massive enlightenment/acesion and I believe will cause massive natural disasters which will destroy areas where there are no acended people, God is basically going to kill all that do not follow him. And christians/catholics do not follow him, they just like to pretend they do, they will be killed too. This alignment will last for 30 years until every person not walking with God is dead, or insane.