And it's stuff like this that makes me cringe at the mention of TLM.
What part of it made you cringe?
It's really only the theology of Sacred space (the sanctuary, the church, pilgrimage-sites, etc) and of Sacred time (Sunday, the set-up of the Liturgy of the Hours) applied to language - i.e. that contact with Christ effects a change in the fabric of creation, not just the individual.
Curiously, the responses I'm reading here for the reasons why Latin ought not to be considered more sacred are essentially the same as the objections evangelicals and other non-liturgical Christians have toward the liturgy in general, particularly what you said in post 31: that we say words because we mean them. The evangelical takes that and applies it to the liturgy in general: you don't mean words that have been written previously by someone else. The evangelicals also have a very weak understanding of Sacred Space and Sacred Time, which allows them to depreciate the liturgy. I think you've fallen into a similar error, in thinking that words themselves are not material for the sacred in the same way as space and time.
There's also a second theological distinction that's been glossed over, and that is the distinction between public and private prayer. Private prayer is my personal devotional life; its value depends on my existential relationship with God, the Saints, the Church, etc. Public prayer (the liturgy) is not my own: I do not say the words because
I mean them - I say them because
the Church means them. The failure on the part of many of the clergy to comprehend the difference between public and private prayer has led to the infamous liturgical abuses.
Latin in the liturgy (the public prayer of the Church) is a beautifully incarnational sign, with the same theological justification as Sacred Space and Sacred Time, as well as a counter to too heavy a reliance on existentialism in the spiritual life.
And just as a final note, I don't pray in Latin; I pray the Liturgy of the Hours in Italian. It is not my first language; I do not understand every nuance or, indeed, every word. But I don't worry, because the prayer is not my own, and it does not rely on me.