AFAICT going past the "veil" amounts to entering the mental realm of concepts and ideas (Plato appears to look from this level). Pardes (if you mean the orchard of Torah) sounds more like leaping through the abyss, that is, going past concepts "synthesized" in Da'at.

That can really have four outcomes (but first three are just levels of the same disillusionment that may set in because all meanings go out of the window) -- one may succumb to untreated nihilism (die), may go mad like Nietzsche did, or simply apostatize because, well, what's the point. Those who accept it then abide in peace and can become quite addicted to it (e.g. all those mystics you may see permanently immersed in samadhi).

But -- one may also realize (like Buddha did) that meditative absorptions are not It. So, that's that.

I'm not exactly expert on Bardo Thodol, but from what I remember when I read it few years ago, it mapped nicely with "standard" Buddhist cosmology, meditation dhyanas, as well as Tree of Life. However the lower one gets the more those maps divert (still, the main "landmarks" align pretty nicely).

As for Jesus and "tearing the veil", you can certainly interpret it that way. I would just add that removing the veil merely reveals The Ark of God. To get to Ten Words (aka Torah) one must also open the Ark.