Prāṇa, the vital life force that sustains all living beings, occupies a central place in the Yogic tradition. While the classical Yoga system primarily emphasizes the discipline of prāṇāyāma for the regulation of breath and mind, the branch of Yoga called Svara Yoga developed a more elaborate understanding of the movement of prāṇa and its influence on human health and the process to prognosticate. Among the texts belonging to this branch, the Śivasvarodaya occupies a unique position by presenting the science of Svarodaya, which is based on the observation of the flow of svara(prāṇa) through the nostrils and its correspondence with the nāḍīs and the pañca-tattvas(five elements). The science of Svarodaya explains the relationship between the movement of prāṇa, the functioning of Iḍā, Piṅgalā and Suṣumnā nāḍīs and their effects on human physiology, psychology and spiritual practice. It also presents practical methods for determining the appropriate time for various activities, understanding bodily conditions, promoting health and longevity. It also teaches how to regulate svara and interpreting the influence of the elemental forces operating within the body. In addition, the text preserves a distinctive tradition of prognostication based on the patterns of breath, integrating yogic physiology with cosmological principles and practical life. This paper seeks to highlight the importance of this less known Svara Yoga and its enduring relevance to both traditional Yogic practice and contemporary understanding of holistic well-being. In the process it draws upon the Śivasvarodaya and related Yogic, Upanisadic and Puranic sources.