Circular Shape: People are all equal in the eyes of government. Government of Luna serve its inhabitants equally regardless of age, sex or ethnic origin.
Mountain: Llife stability. It is the main deposit of untapped natural wealth, major and minor forest products, minerals, wildlife and many others. It is the life blood of Luna and adjoining towns of Cagayan. It provides irrigation water at the ricefields of two provinces, Apayao and Cagayan. Territory of Luna consists of wider mountainous and rolling areas than lowland.
Shield: Peace, readiness, and bravery. While the people of Luna are peace-loving. They are ready to defend themselves in case of aggression. Shield has 5 branches or figures which shows Luna then consisted of two district areas. Bisected by Apayao-Abulug River, it comprises northwest side and southeast side represented by the two bottom fingers. As years passed by, 3 municipalities were created out of the former territory of Luna; namely Pudtol, Flora and Sta. Marcela, each are represented by the 3 upper fingers. Flora and Sta. Marcela now occupies the former southeast side of Luna while Pudtol and mother town Luna are located at northwest side of the river.
Diamond: Precious metal: enormous natural wealth of the town. Wide mountains rich in minor and major forest products. Minerals, wildlife, clear rivers and streams with rich aquatic food and also have wide and fertile agricultural land and others.
Spear: Way of living of the first inhabitants of Luna, Isnegs and Aetas. Natives are expert hunters. Their main source of livelihood was hunting. They depend chiefly on wild animals and birds for living. Spear is a very efficient instrument for hunting but is also used as a weapon against enemy attack. Today, hunting becomes a sport not only for the natives but also for the Ilocanos and other immigrants of the town.
Native Blade: Locally known as "Aliwa", native bolo represents the first inhabitants of Luna; a minority group called "Isneg" or "Itnegs" and Aetas ("pugot" or "aggay") but in much lesser number than the Isneg. Until Ilocano immigrants poured in, Isneg dominated the whole municipality. Aliwa is a sharp cutting instrument used chiefly by the Isneg at their residence or at the hillside farm. It is also used together with the spear for hunting and warfare. It is the status symbol of the Isneg. Older folks or middle age Isneg always carry or fasten at their waist an Aliwa anywhere they go, at peace or at war.
Logs: Fifteen (15) Barangays and prominent Sitios of Luna at the time of it's creation into a Municipal District. It included the barrios of former southeast district (now the municipalities of Flora, Sta. Marcela and Pudtol). Carabao logging then was a secondary means of livelihood next to farming. Logs were gathered not at the mountain but right at their homestead while clearing. Hard wood whose stumps are still visible today and were abundant at the fertile ricefields of Luna.
Paddies: Self-sufficiency of agricultural foods. The wide ricefield supply staple food of thousands if not millions of Filipinos. The straight and parallel earthen embankment of the paddies denotes that production is being mechanized to conform with present trend of modern agricultural know-how.
1929: Marks the year when Municipality of Luna was created by virtue of Executive Order No. 200. Named in honor of the famous Ilocano General Antonio Luna, one of the greatest Filipino Patriots and idol of the first wave of the Ilocano immigrants from the Ilocos Region.