Supreme Lord Sri Krishna self-manifests within His Holy Name and reveals Himself through Shastras (scriptures) and Spiritual Master.
The Hare Krishna Mahamantra is complete, and it is the condensed form of all of Krishna’s names and transcendental mellows. One can experience Supreme Lord Sri Krishna’s divine presence in this Mahamantra only by embracing the process of chanting with humility, firm faith, and devotion, under the shelter of a bona fide Spiritual Master.
Remembrance of Guru (Spiritual Master), Vaishnavas (pure devotees) and Bhagavan (Supreme Lord Krishna) will remove all obstacles on our spiritual journey and reward us with pure devotion for Sri Krishna. Supreme Lord Sri Krishna bestows His mercy through His pure devotees. Thus, we must have full faith in Guru and Vaishnavas and advance in our devotional practice through the chanting of the Hare Krishna Mahamantra under their shelter.
Supreme Lord Sri Krishna is non-different from His holy name, His deity and His form. Devotion to Sri Krishna begins with association of His pure devotees and this association nourishes our spiritual progress. Therefore, we must hear and chant the divinely spiritual Hare Krishna Mahamantra in the sacred association of such pure advanced devotees and deliver ourselves from this miserable mundane world.
According to Supreme Lord Sri Krishna Chaitanya Mahāprabhu’s instruction, we must serve and worship a Vaishnava who chants the holy name of Sri Krishna and whose very presence inspires others to chant. Such pure exalted Vaishnava is rare and we must seek his association to progress in our spiritual journey through the chanting of the Hare Krishna Mahamantra under his guidance and achieve the highest perfection of this life.
Just by acquiring a lot of knowledge, one will become a mundane scholar without any spiritual realisation and he will indulge in criticism and fault-finding, which is not at all favourable to devotional practice. We can get divine realisation only through the chanting of the Hare Krishna Mahamantra under the shelter of the bonafide Spiritual Master, as this process will definitely awaken our love for the Divine Couple Sri Sri Radha Krishna and free us from the material bondage.