In the first chapter Buddhadasa says "The first point to deal with is that of idappaccayata as being the Buddhist god." I tend to call this Gaia especially in novels.
Here are the chapters. Click the links and a new pdf will open:-
1
Idappaccayata
2
Void mind
3
Living in the present
4
Birth
5
God
6
Nibbana
7
Samsara
8
The World and the Dhamma