Most music attempts to enter your head with catchy tunes, or makes an impact with danamic changes, emotive scoring and instrumentation. Glass ignores all of these, but somehow by the end of the three CDs the music becomes part of you in a way that no music ever will again. The extent of the music surrounds you entirely and doesn't let fo until the last note.
However. A note of warning. It is not pretty. It is not outwardly interesting. It is horrible to anyone not making an effort to get inside. If you don't have guts, you won't stand a chance against this piece of music. If you do have guts it is the most satisfying piece of music ever to listen too.