Changes

I do not believe a mantra can change the physical consciousness. What it does, if it is effective, is to open the consciousness and to bring into it the power of that which the mantra represents.<ref>http://incarnateword.in/cwsa/29/mantra-and-japa#p10</ref>

This and past experience also shows that if you can overcome the old association of the japa with sterility and sorrow, it can do its natural function of creating the right consciousness—for that is what the japa is intended to do. It first changes the vibrations of the consciousness, brings into it the right state and the right responses and then brings in the power or the presence of the Deity.

<ref>http://incarnateword.in/cwsa/29/mantra-and-japa#p39</ref>