(Thanks to Aniruddha Prabhu for posting these.)

Six rules offered by Sanatana Goswami for those who wish to reform their chanting. From The Gayatri Book by Sacinandana Swami.

manaḥ-saṁskāraṇaṁ śaucaṁ
maunaṁ mantrātha-cintanam
avyagratvam anirveda
japa-sampatti-hetavah

In order to perfect one’s japa, one needs to cultivate the following qualities.

1. manaḥ-saṁskāraṇaṁ – the ability to control one’s mind
2. śaucaṁ – internal and external purity
3. mauna – the ability to be silent
4. mantra-artha-cintana – the ability to contemplate the meaning of the mantra
5. a-vyagratva – patience
6. a-nirveda – steadfastness