The Tree of Life and the tetractys are representations of the 10-fold nature of holistic systems designed in the biblical 'image of God.' The Supernal Triad corresponds to the yods at the corners of the tetractys, the two triads of Sephiroth of Construction:

Chesed-Geburah-Tiphareth
Netzach-Hod-Yesod

correspond to the two triangles of hexagonal yods forming a Star of David and Malkuth at the base of the Tree of Life corresponds to the yod at the centre of the tetractys. As the counterpart of the seven Sephiroth of Construction, the seven hexagonal yods symbolize degrees of freedom in holistic systems that manifest as the seven intervals of the Pythagorean musical scale, the seven higher dimensions of space predicted by what physicists call 'M-theory' and in many other 7-fold systems, such as the seven unit imaginary octonions, which define what mathematicians call the 'fourth division algebra.'

This equivalence is a major key to unlocking scientific information about the nature of the physical universe that is encoded in sacred geometries.