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## Trivarnika Achar:
**Aartdhyan and its types:**
Aartdhyan is of four types:
1. **Istaviyogja Aartdhyan:** Thinking about how to regain lost loved ones like children, wife, etc.
2. **Anistasanjogja Aartdhyan:** Thinking about getting rid of undesirable things like poison, thorns, enemies, etc.
3. **Nidanjanja Aartdhyan:** Thinking about future enjoyments.
4. **Vednajanja Aartdhyan:** Thinking about physical pain.
These types of Aartdhyan are the root of sins and lead to the cycle of birth and death (tiryag gati). Therefore, it is best to avoid them completely.
**Roudradhyan and its types:**
A person who sees suffering beings in the world and instead of feeling compassion, becomes cruel and inflicts pain on them is called Rudra. The meditation of such a person is called Roudradhyan. It is of four types:
1. **Hinsananada:** Finding joy in violence.
2. **Mrishananda:** Finding joy in lying.
3. **Steyananda:** Finding joy in stealing.
4. **Parigrahananda:** Finding joy in protecting possessions.
Roudradhyan should be avoided at all costs.
**Dharmadhyan and its types:**
Dharmadhyan is of four types:
1. **Agyavichay:** Firm belief in the truth as stated by the Jina.
2. **Apaya Vichay:** Understanding the dangers of the cycle of birth and death.
3. **Vipak Vichay:** Understanding the consequences of actions.
4. **Sansthan Vichay:** Understanding the nature of reality.
These four types of Dharmadhyan are beneficial and lead to the well-being of all beings.
**Agyavichay:**
Agyavichay is the Dharmadhyan that involves firm belief in the truth as stated by the Jina, free from false beliefs.