The more one studies Sri Aurobindo and The Mother, the more is one wonderstruck by the breathtaking sweep of their experimentation and their victorious achievements. It is impossible to present even a distant idea of the crucial significance of their realisations to the expanding horizons of knowledge and to the possibilities of evolution and mutation of the human species. What has been attempted in this book is to present only a few glimpses.
It would be useful to explain some of the important terms that Sri Aurobindo and the Mother have used in describing their experiences and realisations. In doing so, it would be necessary to present a brief account of what may be called the yogic psychology of Sri Aurobindo and the Mother. This has been presented in Appendix IV.
I wish to place on record my gratitude to Sir C.P.N. Singh, formerly Governor of Punjab and Uttar Pradesh, and to Professor D.P. Chattopadhyaya, Chairman of the Indian Council of Philosophical Research, for the encouragement they have given me to pursue my research work. Above all, I am deeply grateful to Satprem whose books on Sri Aurobindo and the Mother have provided me valuable insights into the significance of their work.