... the Upanishads speak of jyotir brahma, the Light that is Brahman. Very often the sadhak feels a flow of Light upon him or around him or a flow of Light invading his centres or even his whole being and body, penetrating and illumining every cell and in that Light there grows the spiritual consciousness and one becomes open to all or many of its workings and realisations. Appositely I have a review of a book of Ramdas (of the Vision) before me in which is described such an experience got by the repetition of the Rama mantra, but, if I understand rightly, after a long and rigorous self-discipline. "The mantra having stopped automatically, he beheld a small circular light before his mental vision. This yielded him thrills of delight. This experience having continued for some days, he felt a dazzling light like lightning, flashing before his eyes, which ultimately permeated and absorbed him. Now an inexpressible transport of bliss filled every pore of his physical frame." It does not always come like that—very often it comes by stages or at long intervals, at first, working on the consciousness till it is ready. <ref>https://incarnateword.in/cwsa/29/bhakti-yoga-and-vaishnavism#p48</ref>
=Impact Of Various Mantras=
==Impact Of Soham==
The experience to which the So'ham mantra leads is the realisation of one Being everywhere, all as the Divine, oneself and all as essentially one with that Divine. It is an experience in which one's separate personal existence shut up in the body ceases to be the normal thing; one feels the body as a point or small thing in a vast existence, consciousness or Ananda that is the Divine and oneself as spread out in that vast consciousness—as if the world were within us and not we inside the world or as if the world were one with us and one with the Divine. It is the "cosmic consciousness" that comes by this mantra. For our Yoga this is a beginning only, not the end as it is in the ordinary Yoga,—a liberation, not the Siddhi. <ref>http://incarnateword.in/cwsa/29/mantra-and-japa#p18</ref>
==Impact Of Ram Mantra ; Story Of Ramdas==
There is also a manifestation of Light—the Upanishads speak of jyotir brahma, the Light that is Brahman. Very often the sadhak feels a flow of Light upon him or around him or a flow of Light invading his centres or even his whole being and body, penetrating and illumining every cell and in that Light there grows the spiritual consciousness and one becomes open to all or many of its workings and realisations. Appositely I have a review of a book of Ramdas (of the Vision) before me in which is described such an experience got by the repetition of the Rama mantra, but, if I understand rightly, after a long and rigorous self-discipline. "The mantra having stopped automatically, he beheld a small circular light before his mental vision. This yielded him thrills of delight. This experience having continued for some days, he felt a dazzling light like lightning, flashing before his eyes, which ultimately permeated and absorbed him. Now an inexpressible transport of bliss filled every pore of his physical frame." It does not always come like that—very often it comes by stages or at long intervals, at first, working on the consciousness till it is ready. <ref>http://incarnateword.in/cwsa/29/bhakti-yoga-and-vaishnavism#p55</ref>
==Impact Of OM==
There is ONE sound which, to me, has an extraordinary power—extraordinary and UNIVERSAL (that's the important point): it doesn't depend on the language you speak, it doesn't depend on the education you were given, it doesn't depend on the atmosphere you breathe. And that sound, without knowing anything, I used to say it when I was a child (you know how in French we say, "Oh!"; well, I used to say "OM," without knowing anything!). And indeed, I made all kinds of experiments with that sound—it's fantastic, even, fantastic! It's unbelievable.
<ref>http://incarnateword.in/agenda/05/september-23-1964#p10</ref>
=Japa And Healing=