四方之神，鎮守四方，辟邪惡、調陰陽。
瓦當是建築用的一種陶製品；瓦，圓弧形的瓦片，而「當」則為瓦的頭端，起著保護屋檐頭的作用。
四神獸「青龍、白虎、朱雀、玄武」各代表著四個方位，故被稱為四方之神。

四神瓦當，外觀呈現圓形，象徵天圓地方，在西安的長安城遺址中發現了珍貴的四神獸瓦當，有著護衛、平安的祈福之意。傳說中的遠古神獸，既充滿神秘感又顯生動活潑，重要的是與百姓傳統神靈信仰貼近，幾乎為所有人共同的普世神靈信仰與精神寄託。陜拾叄從西安的歷史出發，以四神獸瓦當為概念製作出瓦片餅乾，研發四種口味，分別象徵了東青龍、西白虎、南朱雀及北玄武；在包裝盒的設計上，使用象徵繁榮與財富的綠色結合上標示著四方神獸的羅盤燙金，東、南、西、北不同方位有不同的神獸保護著，獨特的四神獸設計表現方式，讓整體效果現代簡約又富有文化意象。

內袋亦以四獸代表之顏色為口味分袋，加上四神獸的特徵並結合屋簷圖騰，強化了瓦當的意象，中間透明的設計，不僅將神獸凸顯出來，也讓口味特色完整呈現。提袋設計以陜拾叄的識別主色加上白色的四方神獸意象，提升整體送禮質感。


The four orientations of animals protect four positions, defense. Eaves-tile ornament is a ceramic product for the building, which protects the roof from the rain.Four Celestial Animals are Azure Dragon, White Tiger, Vermillion Bird and Black Tortoise, that protect four orientations.
Four mythological symbols eaves-tile ornament has the shape of round, the first mythological animal eaves-tile ornament was found in Changan City remains in Xian, with the meaning of protection and safety. The Legendary ancient animals are mysterious and alive, more importantly, it is close to people’s religion that human was believing in.
Shaanxi Thirteen start from Xian’s history, take the four Celestial Animals as a concept and create the eaves-tile, moreover develop four flavors each mean eastern Azure Dragon, western White Tiger, southern Vermillion Bird and northern Black Tortoise.
On the package design, use the color of green with the meaning of rich and wealthy, and the compass combines with four mythological animals that stand on their position. Furthermore, the unique illustration of the four mythological makes the package design modern and cultural.
Additionally, four animals indicate four flavors matching, with the tile roof illustration emphasis the connection, on the center transparency part is bringing out the illustration and also represent the flavors clearly.