A disciple from the inner ashram of Hilarion (Ray 5) I am trying to discern here energetic (seven rays) pattern in Grothendieck's esoterically challenging life through perspectives offered by Esoteric Astrology, Psychology and the Science of Seven Rays. The exoteric life details of this great disciple can be found on Grothendieck Circle Website, which will be the reference for the exoteric facts of this post. 1. Grothendieck (born in Germany) remained stateless throughout his life but choose to settle in a country (France) whose Soul Ray is fifth and Personality ray is Third reflecting his estimated ray profile through my research. 2. I hypothesize that Grothendieck subconsciously responded to energies from the Avatar of Synthesis by influencing the work of Saunders Maclane giving rise to a foundational branch (although he didn't give first definition of a category) of Mathematics called Category theory which is precisely the synthesis of entire mathematics (not yet fully ackno