Tears of call
When the mantra is chanted by a pure devotee of the Lord, it has the greatest effect on hearers, and therefore this chanting should be heard from the lips of a pure devotee of the Lord, so that immediate effects can be achieved. As far as possible, chanting from the lips of non-devotees should be avoided, just as one would avoid milk touched by the lips of a serpent because it has poisonous effects
The word Hara is a form of addressing the energy of the Lord, and the words Krishna and Rama(which mean “the highest pleasure eternal”) are forms of addressing the Lord Himself. Hara is the supreme pleasure energy of the Lord, and when addressed as Hare in the vocative, She helps us to reach the Supreme Lord.
The material energy, called maya, is also one of the multi-energies of the Lord, and we, the living entities, are the marginal energy of the Lord. The living entities are described as superior to the material energy. When this superior energy is in contact with the inferior energy, an incompatible situation arises, but when the superior marginal energy is in contact with the spiritual energy, Hara, the living entity is established in his happy, normal condition
These three words, namely Hare, Krishna, and Rama, are the transcendental seeds of the maha-mantra. The chanting is a spiritual call for the Lord and His internal energy Hara to protect the conditioned soul. This chanting is exactly like the genuine cry of a child for its mother. Mother Hara helps the devotee achieve the grace of the Supreme Father, Hari or Krishna, and the Lord reveals Himself to the devotee who chants this mantra sincerely.
Therefore no other means of spiritual realization is as effective in this age of quarrel and hypocrisy as the chanting of the maha-mantra