Secrets of Sushumna
The word Sushumna in Yoga is a really dynamic word. In Hatha yoga It means the naadi ranging from the mooladhara to Sahasrara. Though , quite possibly, the word Sushumna itself is a Sandhya bhasha terminology in Sanskrit. In the word Sushumna itself lies codified the secrets of Samadhi. Let us break the word Sushumna into three parts - 'Su' , 'Shu', 'Mna'. The 'Su' in Sushumna stands for that which is pleasant or indicative of Bliss. 'Shu' is the root word for Shuchi or Shuddh indicating purity , wholeness (poornata) and clarity of perception. 'Mna' in its root means to intently Fix your mind upon something or anchor or mind to something...eg: breath, mantra. etc. So quite possibly, the word Sushumna here is indicative of the state of Laya / dissolution of mind as a result of its fixation on the state of bliss arising internally and also the clarity of perception and sensitivity in the presence of which the ordinary limited mind is diss...