"The chanting of mantra without attentive listening, is not effective. people have worshipped as long as 40-50 years or with " Deeksha"
from professional Guru's, but to no results,as such listening attentively to the mantra jap,as ordained by the Sat Guru is essential.You must have yearning for God or Sat Guru, and an intensive restless to see Him. Then and then only, you can be successful to achieve
your noble mission."  ------- Guru Maharaj Sri Krishan Gopal ji Vyas