What does Samana prana primarily control?

Samana prana is a specific type of prana, or life force, in the yogic tradition that primarily governs the processes of metabolism and digestion. It plays a crucial role in the body by managing how we assimilate food and nutrients, converting them into energy that sustains our overall functioning. In the context of yoga and holistic health, an imbalance in Samana prana can lead to digestive issues and metabolic problems, underscoring its importance in maintaining health and vitality.

The other options, while related to various bodily functions, do not accurately describe the primary control of Samana prana. Elimination processes are overseen by other aspects of prana, and speech and communication are more closely linked to different forms of energy within the body. Likewise, heart function falls under the realm of a different prana, known as Prana, which oversees vital life processes including circulation. Thus, the affirmation that Samana prana controls metabolism and digestion aligns with its defined role and importance in yoga practices and teachings.