In Ayurveda, the phrase “Nāsa hi Śiraso Dvāram” emphasizes the significance of the nasal pathway as the primary gateway to the head and its structures. The nose serves not only as the organ of respiration and olfaction but also as a vital channel for therapeutic procedures like Nasya karma. Anatomically, the nasal cavity is closely connected to the paranasal sinuses, olfactory apparatus, and cranial cavity. Physiologically, it regulates respiration, olfaction, filtration, humidification, phonation, and protection of the respiratory tract. From an Ayurvedic perspective, the nasal route directly influences the śiras (head region), governing higher centers including indriyas (sense organs) and manas (mind). Modern anatomy validates this by highlighting the close proximity of the nose to the central nervous system through the olfactory nerve and vascular-lymphatic communications. Thus, the nose acts as a bridge between the external environment and the internal higher centers of the body, justifying its role as the “gateway to the head.”