Gandalf's comment about Frodo

[Lotrelf]

Has anyone read this article? http://www.frodolivesin.us/Catholicwork/id8.htm
This is a brilliant article, and I hope I'm allowed to post the link, but still...
I have always wondered Gandalf's comment about Frodo, when he says, "He's not half through yet." What did Gandalf mean here? Though, it is clear that Gandalf is talking about Frodo's "come back" to the real world. But, I feel, he also means when he says that Frodo is not "half through yet" that he's not 'half through yet' to becoming like a "glass filled with clear light."

[Inziladun]

Originally Posted by Lotrelf

Though, it is clear that Gandalf is talking about Frodo's "come back" to the real world. But, I feel, he also means when he says that Frodo is not "half through yet" that he's not 'half through yet' to becoming like a "glass filled with clear light."

Or, not "half through" with his quest, and his dealings with the Ring. Frodo would have the opportunity to grow in spiritual power in the near future, and Gandalf suspected he would rise to the occasion. I think it was that spiritual awakening that Gandalf referred to, and Sam observed. It may be noteworthy that it was Gandalf and Sam, who knew Frodo best (save perhaps Bilbo) who perceived that "transparency" of Frodo's.