When Christ removes the veil, our lives are transformed and we can be truly spiritual. We can be free to do everything we should spiritually. If we remove the veil ourselves, we momentarily ignite our own glory but this eventually fades.
The world talks of “secrets” to success;well, here’s the secret to true Spirituality: we don’t create our own spirituality ourselves. “Now the Lord is the Spirit, and where the Spirit of the Lord is, there is liberty.” (2 Cor 3:17)
Here’s another way to look at it: if I can’t control my body functions (who makes their heart been and organs operate?) what confidence do I have in constructing my own meaningful spirituality? Christ must do it through His Spirit.