... 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>
=Experience on Chanting Mantras=
==A Call and a Surrender==
The constant call which might find a material expression in saying the mantra, but it's not even that: it's the SENSE, the sense of the call, of the aspiration—it's above all a call. A call. You know, when the mind wants to make sentences, it says, "Lord, take possession of Your kingdom." For certain things, I remember, when there are certain disorders, something wrong (and with the perception of a consciousness that has become very sharp, you can see when that disorder is the natural origin of an illness, for example, or of something very serious), with the call, the concentration and the response ... [the disorder is dissolved]. It's almost a surrender, because it's an uncalculating self-giving: the damaged spot opens to the Influence, not with an idea of getting cured, but like this (''gesture like a flower opening out''), simply like this, unconditionally—that is the most potent gesture. <ref>http://incarnateword.in/agenda/08/december-20-1967#p25</ref>
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And on the other hand, the mantra gives me a feeling of a mental imposition, you understand? It's not something that springs up from the core of the cells. It's imposed. So it is set going for a time and is repeated—the mantra gets repeated the way any stupidity is repeated. And then after a time, something else comes. <ref>http://incarnateword.in/agenda/12/august-18-1971#p11</ref>
=Vibrations, Sounds, Speech=