In the following essay the concepts of plenitude and emptiness are examined in order to offer an understanding of some aspect of the Japanese philosopher and poet Eihei Dōgen‘s (1200-1250) mayor work the Shōbōgenzō. We also considered the Philosophy of Spinoza (1632-1677) and its confluences with Zen Buddhism. What is exposed here is the grounding of some ethical and ontological proposals which can allowed us to reconsidered the philosophical experience not only as a theoretical o speculative matter but also as a vital experiment with the limits of human condition. The interest is not to make an exercise on comparative Philosophy but to remove the soil and have an insight on what the Japanese language calls de «Way of mind and heart» (do shin: ).Se exponen en este ensayo los conceptos de plenitud y vacío con el propósito de dar a entender el pensamiento del filósofo y poeta japonés Eihei Dōgen (1200-1250). Para ello se tiene en cuenta la filosofía de Spinoza (1632-1677) y sus confluencias con el budismo Zen y, en general, las enseñanzas del Buddha Shakyamuni. Interesasentar las bases para una algunos planteamientos éticos y ontológicos que permitan reconsiderar la experiencia filosófica como un experimento vital con la condición humana y no solamente como un asunto teórico o especulativo. Por esa razón no se trata.