Vain disputation and discussion should not be entered into. (Sutra 74)
A devotee must not indulge in controversial discussion. Such discussions will not benefit others.
The nature of Truth is such that it can never be proved by argument alone.
By argument, neither an atheist can prove ‘there is no God’, nor can a sage prove that ‘ there is God.’
It is only in the inner experience as we lift ourselves from the limited, little hide-out of our intellect, when we disengage it from its bondages with the objects-emotions-thoughts, and rise to the heroism of a greater living, only then, released from this tiny well of existence, can we have at least a vague suspicion of perhaps a possibility of the existence of a greater Reality.
So long, as we are embedded in the flesh, hibernating in the midst of sensuous sorrows and Vasanas, basking in the brilliant warmth of some intellectual fireworks, or remaining encrusted with the prison-house of the body-mind-intellect, nothing can be understood or experienced of the Truth. Since nothing can ever be proven by arguments, let us leave them – let us live the path – that in itself becomes its own unquestionable proof.
Narada Bhakti Sutra
This explanation to the Sutra is by Swami Chinmayananda.