Answer – The mind cannot attain peace by reflecting over any branch of knowledge. Peace and happiness are achieved only and only by remaining in the Devotion Sentience.
If the recalling of the word of the Almighty is done without reflecting over and chanting His name, that is, if the teachings of the Almighty are reflected over without remaining in the Devotion Sentience, it will be of no use. Everything else is useless without the love for the Almighty.