And they are all constructs of the heart, as the Masters of the Mishnah have established:lxiiiBT Berakhot 61a and Qohelet Rabbah 1:36 the heart understands, the heart sees, the heart hears. Behold three! Hei ה it actually is [Var. breath]. And the ‘spirit-wind∞ruḥa of the mouth’, through which ascend voice, and utterance and speech, – this is Vav ו, the arteries of the heart are like soldiers following their King.
And the mystery of the matter: (Ez. 1:12) To wherever the ‘spirit’∞ruaḥ was to go, they would go... Thus, do the arteries of the heart behave in relation to the spirit [like with those above]. Behold you have the wind∞ruaḥ in the heart, which emerges from the left ‘ear’ of the heart, it was ‘the northern wind that strummed upon David’s harp.’lxivBT Berakhot 3b And with this spirit did he strum the five strings of the harp, which are the five ‘wings’ lobes of the lung.