"Remember why you are here..."
Thomas and Olga deHartmann met Gurdjieff in Moscow in 1916, and were immediately attracted to his ideas. In the turbulent times that ensued, they followed him across the Caucasus Mountains from Essentuki to Tliflis, avoiding conflict with both the White Russian army and the Bolsheviks along the way. They ended up with Gurdjieff in Paris, and were a part of the opening of the Institute for the Harmonious Development of Man at the Chateau du Prieure in Fontainebleau. In 1929, as Gurdjieff leaves for America, they part company, but the deHartmanns remain lifelong adherents of the Gurdjieff Work.
While that may be the timeline in a nutshell, it comes nowhere close to describing the utter sincerity with which their story is told. These two extraordinary people underwent physical danger, privation, illness, and intense personal inner scrutiny in order to remain with Gurdjieff. It is the details, such as Olga deHartmann walking though the mountains in high heels, or Thomas recounting his ability to calmly face a shelling on the battlefield because he remembered himself that make the deHartmanns so endearing, and their book so highly recommended.