What is 'Prana' commonly described as?

'Prana' is described as a life force or universal energy that permeates everything in the universe. In various traditions, particularly in yoga and Ayurveda, prana is considered the vital energy that sustains life. It is believed to flow through the body via pathways called nadis and is essential for physical, mental, and spiritual well-being. The understanding of prana is foundational in many practices, including breathwork (pranayama), where the movement and control of breath are aimed at enhancing and balancing this vital force within the body.

The other options focus on specific practices or techniques rather than the broader concept of life force associated with prana. For instance, yoga postures are physical movements that can aid in the flow of prana but do not encompass its definition. Meditation techniques may utilize prana, but they are separate practices aimed at mental clarity rather than defining what prana is. Physical cleansing techniques, while important for health and well-being, do not capture the essence of prana as an energy that exists universally and within each individual.