No More Learning

In the text in question, prayoga signifies principal course of aaion: [at least when one envisions the moment which           follows the death of the animal; when one envisions the moments which follow this moment,
prayoga signifies, as the Vibhasa says, the consecutive aaion]
But how could the vijnapti of the moment when the animal is
already dead be the principal course of aaion?