다물주의란 잃어버린 옛 강토를 되찾아야 한다는 고구려의 정신적 이념을 말한다. 다물주의는 고구려의 입국정신이자 경영철학으로써, 그들의 진취적 기상을 나타냄과 아울러, 상무정신·대륙정신과 뗄 수 없는 의미를 갖고 있다. 다물주의는 선도의 종지와 표리관계요 선후관계로써, 단군조에서는 ``수단부``의 종지로 나타나 삼천단부를 지키는 정신으로 표출되었는가 하면, 고구려 때에는 ``완기토`` 종지로 이어져 잃어버린 옛 강역을 회복하는 의지로 자리 잡았다. 역대 고구려왕들의 대외 전쟁에도 다물주의의 뚜렷한 명분이 투영되었으며, 고국천왕·고국원왕·고국양왕·광개토왕 등의 명칭에서는 영토 개척을 소중히 하는 고구려의 정신을 엿볼 수 있다. 특히 광개토왕 시절의 동북아 제패 역시 다물주의의 물리적 실현으로써, 그 사상적 배경에도 선도의 가치가 버티고 있음을 확인할 수 있다.

Damulism of Koguryo is familiar to us as a motto. It is a word of motto for comfort for the lost continent and a motto for resistance against the plunder of Korean history by neighboring Asian countries. In spite of the knowledge of the fact that "Damulism is the motto" of "Regain the old lost territory," it has been kept in mind as an emotional slogan. Also, it has been disregarded because of the lack of historical records. However, "Daemul(多勿)" is neither a vague and emotional slogan nor a fictitious cry to be discarded. Indeed, "Daemul" was a motto for self-defence which had been passed on since the ancient Korea as well as a shout for the restoration of national spirit. Besides, It revealed itself from the collective consciousness of three thousands of tribes. Furthermore, it had been served not only as the spiritual support for the restoration of the continent but also as the cause of struggle for the retrieval of sovereign right. That is the way the idea of Daemulism, which was the spiritual foundation for the establishment of Koguryo as well as its principle of management, having been formed. In addition, Damulism bears relations to the inside and outside of principles of Seon-do. In the Dangun Choseon Dynasty, it showed itself as the principle of "Sudanbu" which means depending a group of tribes. In the Dynasty of Koguryo, it was connected to the priniciple of "Wangito" and established itself as the expression of the will to restore the old territory. The cause of Damulism was apparently reflected in the wars against foreign countries waged by the successive kings of Koguryo. We can take a peep at the idea that Kogyryo had the will to cherish the reclamation of territory in the names of kings of Koguryo such as "Kogukcheonwang," "Kogukwonwang," "Kogukyangwang," and "Kwanggaetowang". Especially the domination of Northeast Asia in the Kwanggaetowang regime was viewed as the physical realization of Damulism. The values of Seon-do underlie in the spiritual backing of the domination of Northeast Asia by Kwanggaetowang Therefore, it is clear that the militant spirit of Koguryo is not just an expression of reckless hegemonism at all, but rather a struggle of a philosophical principle which is connected to "Damulism". However, after the "Yeongryuwang regime," in the decline of Seon-do, "Damulism also ended up like as being destined to be on the decline. The decline considered, it is actually seen that Seon-do had born relation to the inside and outside of "Damulism".