No use of discourses- rituals- and sacrifices

Verse No 006. (mangaLAcaraNam = auspicious preamble).
vadantu sAstrANi yajantu dEvAn
kurvantu karmANi bhajantu dEvatAha
Atmaika bOdhEna vinA vimuktihi
na siddhyati brahma SatAntarEpi.

ENGLISH GIST
A person may explain any number of scriptures and lecture discourses.
A person may pray and worship any number of Gods.
A person may perform any number of rituals.
Yet--
he cannot achieve self-realisation and attain liberation (from the bonds of this world) without self-discourse (and self-reform).

YBREMS (loud thinking)
We must realise that the concept of God, prayer and worship are just tools of self-purification. There is no selfishness in this. Without redeeming ourselves, how can we help others in their redemption?

We have to help and serve others. The target of our discourses cannot be outsiders. It should be ourselves.

The phrase 'brahma SatAntara api' is intended as an emphasis and stress. brahma= creator. Satam = 100. According to Hindu philosophy, even creator too has (his?her?) beginning, existence and end. The creator's life extends over several mahA-yugAs and manvantarams i.e. several millions of years. Yet he has END.

Now, a 100 lives of brahma = several billion years. The intended stress here is, a person without self-discourse, self-reform and self-restraint can never attain self-realisation (knowledge-of oneself) even after billions of years.

Hence, every person should look into him/her-self, not outside.