Niyamas are principles of regulating your internal state. Each niyama is connected to the shells.
- Shaucha - purity - physical shell
- Santosha - contentment and regulation of desires - emotional contentment
- Tapas - have real intention to reach goals - energetic shell
- Svadhyaya - self-education to grow - intellectual shell
- Isvara Pranhidnana - dedication to supreme spirit/god (whatever that means to you) - spiritual shell