Sri Aurobindo's, The Life Divine: Part 19 - Supramental on Earth I with The Mother's Commentaries
"This new realisation is proceeding with what one might call a lightning speed, for if we consider time in the ordinary way, only two years have passed from the time the supramental substance penetrated into the earth atmosphere to the time the change in the quality of the earth atmosphere took place. If things go on advancing at this speed, it seems that what Sri Aurobindo wrote in a letter is a prophetic announcement: The supramental consciousness will enter a phase of realising power in 1967." - The Mother