In Kant, the Three Ideas of Reason
In Aurobindo, the Three Perpetual Symbols
In classical Vedanta, Jagat, Jiva & Para
symbolise the Three Calves.
These are terms of the manifestations of Relative Being, The Relative Universe, Jagat, The Relative Ego, Jiva The Relative Supreme, Para, Lord And the big Cow, the Universal Mind,, The Creatrix, Mediatrix and Dispensatrix ! Which brought forth the Universe, Yatha Jagat Sarvam Idam Prasooyathe !