Beautiful.

The lyrics of this song are nearly as beautiful as the music itself:

As secret as a dream you call

As silent as the night for all you cry

Lacrymosa

Lacrymosa dies illa

Dolorosa Domine Voca Voca Me

You whisper in my silent sleep

You answer to my call when lost I cry

Lacrymosa

The music is by a group called Libera - a treble choir. My thanks to Wim van Overbeke for introducing me to them.