1. "Mother" invokes the Supreme Truth Consciousness Force of the Divine Evolutor whose only work is the Divine Transformation of the whole material universe which of course includes thought too.
2. "Om Sri Aurobindo Mother" invokes both the Master of the Divine Work and the Shakti and gives therefore amazing results.
3. "Om Namo Bhagavate" of course has been the very mantra of the Mother Herself when She was totally involved in the difficult task of Transformation of the Body, and is very effective in transforming thought too.
4. And finally "Om Mahakali Sri Krishna" has been to me, a very effective and powerful mantra. About this mantra Sri Aurobindo says, "The combination of Krishna and Mahakali is one that has a great power in this Yoga and if the names arise together in your consciousness it is a good sign."
I have found that even a mechanical repetition of these mantras opens up doors in hard stone walls of habits and atavism. posted by Parvati at Wednesday, October 12, 2005