Raj wrote: “it is inconceivable that the rupakkhanda has all the rupa that it has ever experienced (considering the countless lives one has taken in samsara) and very scary that there is every possibility of one being very pure at one stage and being completely polluted at some stage..”
Yes. Rupakkhandha includes RECORDS OF all past rupa. The same is true for vedanakkhandha, sannakkhandha, etc. But we don’t remember the five aggregates separately. A given past event has all five aggregates associated with it and we MAY remember them together (or some parts of them).
– But that does not mean we remember all that. Most people don’t even remember many things that happened even a few days ago.
– But some of those events mold our character/habits. That is how our character (gati) evolves over time. Of course, over long times our character can change back and forth many times (good to bad and vice versa).
Just try to get the basic idea. The current series of posts are important:
“Basic Framework of Buddha Dhamma“