[dosakkhayo]

I would like to share my understanding of this topic.

If there are any mistakes, I would be grateful if you could kindly point them out.

Buddhist Theory of Matter – Fundamentals

#9 third bullet

The collective accumulation of suddhāṭṭhaka created by all living beings leads to the sustenance of the “external world.”

I understand the above statements as follows:

1. There is no beginning to ‘samsara.’
2. Therefore, there is always ‘pre-existing matter.’
3. To this pre-existing matter, additional minute quantities of suddhatthaka are continuously and collectively added.
4. Of course, the pre-existing matter was added in the same manner as described in point 3 at some point in the past.