I have been a couple of weeks plus into level 2 now. I find the bells a little annoying sometimes.
Usually I listen in the morning after I get up I put on the headphones and lie in bed listening.
Most of the time I fall asleep or go deep enough to be surprised by the end of the CD. Initially
the bells didn't bother me so much since I did not notice them after a while.
However, a few nights ago I listened late in the evening before going to bed. I sat up and turned
off the lights and listened. I was downstairs in the living room. I had recollection throughout the
session. Interestingly, when the bells chimed and you heard the shuffling and rustling of leaves,
the image in my mind immediately shifted to a dark night, like the setups of scary movies. Didn't
feel scary, just the images were dark.
As soon as the bells let up and you could hear some wind in the background, the image moved to
a lightly grey sky with a little drizzle. Sometimes it felt like I was sitting at the edge of a cliff
overlooking the sea with the wind in my face and a slight drizzle wetting me down. The sky never
really turned blue, stayed overcast, but light enough.
Towards the end, as soon as the bells started again, Boom!! I was back in the dark night with a
lurking feeling behind me.

Strange huh?

Just my experience. I am sure different than others'.
Can't wait to the next level.