I agree that she does the soothing, but I've become sensitized to certain musical and vocal tricks she uses. I don't have any one thing I use to take away the pain of a horrible work day - but my job is much less horrible than yours has been. When it's been bad for other reasons, I turn on the 'soundscapes' channel on Comcast. Enya rotates in and out with other 'new-ageish' performers. Penny liked it as an alternative to quiet when she was feeling sick. Some things they used to have in rotation were really nice, in fact, and I wish they'd still play them, so I could order albums.
She didn't like light classical or regular classical for this purpose, though for me having nearly any music playing would sufficiently change the tone of sleep that it would prevent nightmares and reduce sleep paralysis and other side effects of my narcolepsy. The classical music would engage her brain, keeping her awake, while the simpler, prettier stuff would let her relax and feel safer.

I just wish Enya would, I dunno, come up with something nice that isn't a reprise of her existing body of work.