So, what does penetrating the veil truly entail?

[3DMonkey]

Therefore, I must conclude for myself that it is conceptual at best.

It's as conceptual as the sunrise is conceptual

Yes. Perspective based and not actually what is happening.

What's interesting, however, is that one's perspective can change another's mind. Also, mind is primary to matter, so what we perceive we also create - even though we don't fully understand or appreciate it in its entirety.

A hangnail can change another's mind.

Sure, the mind does create, but its like saying the wind created a field of wildflowers.