Eight Limbs of Yoga
In Patanjali's Yoga Sutra, the eightfold path is called ashtanga, which literally means "eight limbs" (ashta=eight, anga=limb). These eight steps basically act as guidelines on how to live a meaningful and purposeful life. They serve as a prescription for moral and ethical conduct and self-discipline; they direct attention toward one's health; and they help us to acknowledge the spiritual aspects of our nature.
Yamas - Restraints
Ahimsa -non-harming
Satya - non-falsehood
Asteya - non-stealing
Brahmacharya - non-indulgence
Aparigraha - non-possessiveness
Niyama - Observances
Saucha - purity/cleaniness
Santosa - contentment
Tapas - discipline/heat
Svadhyaya - study/reflection
Isvara pranidhana - devotion to the lord(aspirations)
Asana - Posture
Pranayama - Breath Control
Pratyahara - Sense Control
Dharana - Awareness
Dhyana - Attention
Samadhi - Communion/Absorption/ Stillness