Step 1: Understanding the definition in the context of yoga
The question refers to a specific yogic posture that involves the contraction and control of certain internal organs or body parts. This is a classical description of a "Bandha" in yoga.
Step 2: What is Bandha?
In Sanskrit, Bandha means "lock" or "binding". In yogic practice, it refers to the intentional contraction of specific muscle groups and energy centers to direct the flow of prana (vital energy). The three major Bandhas are:
- Mula Bandha (root lock) — contraction of the perineum
- Uddiyana Bandha (abdominal lock) — contraction of the lower abdominal muscles
- Jalandhara Bandha (throat lock) — contraction of the throat by tucking the chin to the chest
Step 3: Why not the others?
- Prana refers to life force or vital energy, not a posture.
- Nadi refers to energy channels through which prana flows.
- Chakra refers to energy centers in the subtle body.
Step 4: Final Answer
Thus, the posture that involves contraction and control of specific organs is called Bandha.