1. What is the method of practice?
"As the Self of a person who tries to attain Self-realization is not different from him and as there is nothing other than or superior to him to be attained by him, Self-realization being only the realization of one’s own nature, the seeker of Liberation realizes, without doubts or misconceptions, his real nature by distinguishing the eternal from the transient, and never swerves from his natural state. This is known as the practice of knowledge. This is the enquiry leading to Self-realization."
2. Can this path of enquiry be followed by all aspirants?
"This is suitable only for the ripe souls. The rest should follow different methods according to the state of their minds."