Good summary!
You wrote: “Because of Ignorance (Avijja), we believe the Samsara is pleasurable, therefore we attach (Ragā) ourselves to the 31 realms.”
- Yes. We can say that avijja is the ignorance of the role played by the (distorted) saññā, which is ‘kāma saññā‘ in our kāma loka.
- Without colors, tastes, smells, etc. (generated via ‘kāma saññā‘), we would not crave anything in the kāma loka. Thus, ‘kāma saññā‘ is the trigger for our attachments.
- I tried to explain that in the post What Does “Paccayā” Mean in Paṭicca Samuppāda?
