Disclaimer: This translation does not guarantee complete accuracy, please confirm with the original page text.
Kasaya Pahuda Sutta [15 Charitra-moha-ksapanaadhikara 469. This is the explanation of the fourth bhashya-gatha.]
The bhashya-gatha indicates the measure of the increase and decrease in relation to the destruction of delusion-karmas. The meaning is that in the case of the ascetic or the equanimous beings, the extent of the region that undergoes increase is smaller, and the extent of the region that undergoes decrease is infinitely greater, because during the decrease of the state, the purification is predominant, i.e., it keeps increasing progressively. The extent of the region that remains in its own state, i.e., without undergoing increase or decrease, is infinitely greater than the extent of the region that undergoes decrease. The reason for this is that when a part equal to one part of the paryapta (the full capacity) is given from the extent of any one state or of various states, then that part attains increase, and the remaining major part undergoes decrease; hence, it is natural for them to be infinitely greater. However, those regions that remain in their own state without undergoing any increase or decrease, and hence are called 'avasthaana', are infinitely greater even than the extent of the regions that undergo decrease, and hence they are described as infinitely greater in this increase-decrease.
This increase-decrease is spoken of in relation to the equanimous or the ascetic. Below this, there is a difference in the increase-decrease in relation to the beings in the state of worldly existence, i.e., up to the seventh gunasthana. It is as follows - in relation to the increase or growth of the non-ascetic or the non-equanimous beings, the decrease or diminution may sometimes be equal, sometimes specially greater, and sometimes specially lesser. But the 'avasthaana' is always infinitely greater.
The meaning of this is that if the medium result, free from contamination and purification, becomes the cause when the extent of the regions grasped by the fraction of the innumerable part of the paryapta is taken in relation to the belief in false doctrine up to the non-negligent vowed, then the substance that is determined below or above is just like the increase-decrease, because no cause of difference is found in it. If the results are pure, then the substance that undergoes decrease below is greater, and the substance that undergoes increase above is lesser. And if the results are contaminated, then the substance determined above is much greater, and the substance that undergoes decrease below is lesser. Therefore, it is said that the decrease may sometimes be equal to the increase, sometimes specially greater, and sometimes specially lesser. The same order should be understood in the increase from the decrease. Here, the measure of the lesser or greater of the increase or decrease should be known to be only a fraction of the innumerable part. But the 'avasthaana' is always infinitely greater, because the other type is not possible at all. However, here it is specially noted that the substance in the form of increase for the being inclined towards the karmic results is infinitely greater than the substance in the form of decrease.