perfection to perfection?

from comment 39 http://www.calledtocommunion.com/2012/11/do-you-want-to-go-to-heaven/#comment-46453

Your response implies that it is not possible to move from perfection to greater perfection. But a thing or state of affairs that is perfect in itself can still be incomplete relative to an even greater goal. For example: Our Lord’s sacrifice on the Cross was perfect, or complete, in that it made satisfaction for our sins. The subsequent resurrection, ascension, and heavenly session of Christ do not suggest that the Cross was not perfect, but that its perfection was part of an even greater goal–bringing humankind to heavenly glory. Likewise, man’s perfection in the Garden was complete, in the sense that he lacked nothing that he should have had in that state. But Adam and Eve were at the same time ordered to an even greater perfection, of which their life in the Garden was supposed to have been a part. That greater perfection is represented by the Tree of Life, and is realized in the Beatific Vision, not, now, through the Garden of Eden (we have fallen from that state), but through the Garden of Gethsemane.