dual activated question

[Sabou]

So in order to be a 4d wanderer/dual activated and be from earth, you would have to have been graduated from the last 25, 000 year ago harvest? Or does it mean, say your last life was in the 16th century, and in that lifetime you were 51% or higher service to others and then died, then if you were born recently you would be dual activated since you have gained that understanding previously or does it actually require graduation during a harvest because then it would have to be during the last harvest... LOL