[image: [DSC08421.JPG]] * * *Nada
* * Any practice or technique of meditation that brings about complete cessation of consciousness is called laya yoga. There are many sadhanas recommended in laya yoga, and nada yoga is one. The word nada is derived from the Sanskrit root nad meaning “to flow”. Hence the etymological meaning of nada should be a process or a flow of consciousness. Ordinarily the word nada means sound. There are four stages of manifestation of sound according to frequency and subtlety or grossness. The four stages are: (i) para, (ii) pashyanti, (iii) madhyama and (iv) vaikhari. These four stages of sound should be understood scientifically.* *cnu.pne* ** -- நல்லதுசெய் நல்லதே நடக்கும் जन सेवा इश्वर सेवा cnu.pne
