This prayer teaches us about the subconscient parts and the surrender needed for the yoga.
January 30, 1914
ALL that is conscious in me belongs to Thee without restriction, and I shall strive to conquer little by little and always better the subconscient, the bed-rock still obscure.
Divine Master of love, eternal Teacher, Thou guidest our lives. It is in Thee alone and for Thee alone that we would live; enlighten our consciousness, guide our steps, and grant that we may do the maximum of what we can do, utilising all our energies solely to serve Thee
The text above is quoted from the Third Edition, 1954 (translation by Rishabhchand Samsukha)
This book is freely available at https://www.auro-ebooks.com/prayers-and-meditations-1954-edition/