Is the critical analysis and understanding of natural laws, human behavior, links with society etc. This path describes how to attain the goal with only using one’s understanding and wisdom.
The person who practices should have some basic intellectual status to receive the Knowledge. The success highly depends on the Guru (teacher) and mutual understanding between Guru and his sadhaka (student). It may not suit each and every individual. It will be very interesting to listen the logical explanation but difficult to put the thoughts in to practice. It is also difficult to measure the progress of an individual in this path.