Real Diksha
Guru is like an axe who cuts the attachments deep within one’s heart. Real diksha means that he has no attachment to anything of this material world.
Qualification of Guru
Guru means Sad-guru, otherwise he cannot take you back to godhead.
Secrets of Chanting
Brahma muhurta is the best time to chant. As the day increases, it becomes difficult to concentrate. Prabhupada says that 99% spiritual advancement depends on chanting only. So chant offenseless and attentively. Even a fraction of second should not be wasted.
Potency
Only by chanting hari-nama, one can go back to godhead. No need to do big-big things. Big posts can’t help.