Premanand Maharaj Ji
What is the difference between taking diksha and complete surrender?
Diksha is the first step
Diksha (spiritual initiation) is only the first step of complete surrender. In full surrender, all the body's actions are for the pleasure of your chosen deity.
Diksha is only the first step of complete surrender. Complete surrender has this form: all the body's actions are for the pleasure of one's beloved deity.