The importance of receiving mantras from Guru parampara is emphasized by Lord Sri Krsna. There are references to bonafide disciplic successions. One such disciplic succession is Brahma Sampradaya. Srila Madhvacharya is a very prominent spiritual teacher in this successions. What did Sri Chaitanya Mahaprabhu take from different Vaishnava Sampradayas and to what extent should we accept the philosophy of other Sampradayas is nicely brought out in this lecture. Also another interesting part to the lecture is the celebration of Lord Rama's victory over the demon Ravana which is celebrated as Vijaya Dasami.

There are different kinds of mystic yoga systems aiming for different phases of the Absolute Truth. The jñāna-yoga system aims at the impersonal Brahman effulgence, and the haṭha-yoga system aims at the localized personal aspect, the Paramātmā feature of the Absolute Truth, whereas bhakti-yoga, or devotional service, which is executed in nine different ways, headed by hearing and chanting, aims at complete realization of the Supreme Lord.

It is stated in Bhagavad-gītā that no one is barred from rendering service to the Lord. Whether one is a woman or a laborer or a merchant, if he engages himself in the devotional service of the Lord he is promoted to the highest perfectional state and goes back home, back to Godhead. The devotional service most suitable for different types of devotees is determined and fixed by the mercy of the spiritual master.

Unless one has good engagements in spiritual service, it is not possible to get out of the attachment to material service. Those who are not devotees, therefore, are interested in so-called humanitarian or philanthropic work, such as opening a hospital or charitable institution. These are undoubtedly good works in the sense that they are pious activities, and their result is that the performer may get some opportunities for sense gratification, either in this life or in the next. Devotional service, however, is beyond the boundary of sense gratification. It is completely spiritual activity.

There are different processes of yoga-mārga, attaining yoga perfection, but this process, devotional service to the Lord, is the easiest. Not only is it the easiest process, but the result is sublime. Everyone should therefore try to take this process of Kṛṣṇa consciousness and reach the highest perfection of life.

The process of advancing in Kṛṣṇa consciousness and devotional service is described here. The first point is that one must seek the association of persons who are Kṛṣṇa conscious and who engage in devotional service. Without such association one cannot make advancement. Simply by theoretical knowledge or study one cannot make any appreciable advancement. One must give up the association of materialistic persons and seek the association of devotees because without the association of devotees one cannot understand the activities of the Lord.

There are multifarious miseries in material existence — those pertaining to the body and the mind, those imposed by other living entities and those imposed by natural disturbances. But a sādhu is not disturbed by such miserable conditions because his mind is always filled with Kṛṣṇa consciousness, and thus he does not like to talk about anything but the activities of the Lord.

What are the primary characteristics of a Sadhu ? What are the secondary characteristics ? What happens when we associate with such sadhus ? Does such a sadhu have any obligations to others ? Where does such a sadhu get his energy from and what does he do with that energy ? Instead of dealing with one family, he plants the seed of Krsna bhakti in the heart of whoever he meets.

Why is topics related to Krsna are the most important ones to hear in this world ?

The symptoms of a sādhu are that he is tolerant, merciful and friendly to all living entities. He has no enemies, he is peaceful, he abides by the scriptures, and all his characteristics are sublime. A sādhu, as described above, is a devotee of the Lord. His concern therefore is to enlighten people in devotional service to the Lord. That is his mercy. He knows that without devotional service to the Lord, human life is spoiled. A devotee travels all over the country, from door to door, preaching “Be Kṛṣṇa conscious. Be a devotee of Lord Kṛṣṇa. Don’t spoil your life in simply fulfilling your animal propensities. Human life is meant for self-realization, or Kṛṣṇa consciousness.” These are the preachings of a sādhu.