Your pick. But this is a unique collection that takes traditional sounds and expands on them to include different instrumentation, a really exotic voice, and a feel to take you to alternate realities.
The music is not consistent from one track to the next but it is all in the umbrella of Dead Can Dance. To extract what you really want you may need to buy a few of the albums and do a little ripping.
If you are going to buy one album I would suggest starting with this one. Although I found most track intriguing my favorites are 2 (Song Of Sophia), 12 (The Song Of The Sybil) and 8 (The Host Of Seraphim). The only problem with Song of Sophia is that it is too short.
Track 7 (Wilderness) had the sound and feel of a Gregorian chant.
I guess I am a sucker for Lisa Gerrard I am thinking of purchasing "The Mirror Pool". For the most part Brendan Perry and Lisa Gerrard play off one another and picked up most of their multicultural sounds while working in Melbourne.