Abhidhamma is the answer for doubting person (vicikicchā-mind-factor just arise with pure moha-mind).
Commentary said that in 3 pitaka:
One must leaves every lay's asset, lobha's object, for observing vinaya in vinaya-pitaka. So, vinaya-pitaka is for alobha-development (ordinate to observe monk's sīla).
One must leaves every kāma-loka's senses by jhāna, for living like bhrahmma-deva, like anāgami done. Kāma-loka's senses are causes of dosa, too. Therefore anagāmi, who abadoned paṭiga-anusaya (dosa), abandoned next life in kāma-loka, too. And sutta is very less description, very short, and very less question, when compare with abhidhamma, because buddha taught sutta for the listeners who had experiences in upacāra-jhāna, appanā-jhāna, or upacāra-jhāna-like (ditthi-caritta [uggaṭitaññu & vipacitaññu]). Samahitam cittam yathabhutam pajanati (Good concentrating practitioner will see the truth). So, suttanta-pitaka is for adosa-development (concentration-meditation).
Buddha taught abhidhamma to sāriputta very long description and sāriputta taught paṭisambhidāmagga & niddesa very long description, too. Also, there are millions questions in those canons. Because buddha and sāriputta taught abhidhamma-pitaka for the listeners who have a ton of questions, low concentrating in meditation object, and too much doubts. So, abhidhamma-pitaka is for amoha-development (wisdom/understand-meditation).
So, if you want the answers for every doubts, full-course abhidhamma-study is required by your doubt. Everything in abhidhamma must can analysis their own reasons (causes and effects). So, your doubts can not doubt anymore, after you understand throughout abhidhamma.
Commentary said that in 3 pitaka:
- Vinaya-pitaka is for alobha-meditation.
- Sutta-pitaka is for adosa-meditation.
- Abhidhamma-pitaka is for amoha-meditation.
One must leaves every lay's asset, lobha's object, for observing vinaya in vinaya-pitaka. So, vinaya-pitaka is for alobha-development (ordinate to observe monk's sīla).
One must leaves every kāma-loka's senses by jhāna, for living like bhrahmma-deva, like anāgami done. Kāma-loka's senses are causes of dosa, too. Therefore anagāmi, who abadoned paṭiga-anusaya (dosa), abandoned next life in kāma-loka, too. And sutta is very less description, very short, and very less question, when compare with abhidhamma, because buddha taught sutta for the listeners who had experiences in upacāra-jhāna, appanā-jhāna, or upacāra-jhāna-like (ditthi-caritta [uggaṭitaññu & vipacitaññu]). Samahitam cittam yathabhutam pajanati (Good concentrating practitioner will see the truth). So, suttanta-pitaka is for adosa-development (concentration-meditation).
Buddha taught abhidhamma to sāriputta very long description and sāriputta taught paṭisambhidāmagga & niddesa very long description, too. Also, there are millions questions in those canons. Because buddha and sāriputta taught abhidhamma-pitaka for the listeners who have a ton of questions, low concentrating in meditation object, and too much doubts. So, abhidhamma-pitaka is for amoha-development (wisdom/understand-meditation).
So, if you want the answers for every doubts, full-course abhidhamma-study is required by your doubt. Everything in abhidhamma must can analysis their own reasons (causes and effects). So, your doubts can not doubt anymore, after you understand throughout abhidhamma.
