Savitri

Away from the terrestrial murmur turned
Where transient calls and answers mix their flood,
King Aswapati listened through the ray
To other sounds than meet the sense-formed ear.
On a subtle interspace which rings our life,
Unlocked were the inner spirit's trance-closed doors:
The inaudible strain in Nature could be caught;
Across this cyclic tramp of eager lives,
Across the deep urgency of present cares,
Earth's wordless hymn to the Ineffable
Arose from the silent heart of the cosmic Void;

(Savitri, Book 4, Canto 3)

As when the mantra sinks in Yoga's ear,
Its message enters stirring the blind brain
And keeps in the dim ignorant cells its sound;
The hearer understands a form of words
And, musing on the index thought it holds,
He strives to read it with the labouring mind,
But finds bright hints, not the embodied truth:
Then, falling silent in himself to know
He meets the deeper listening of his soul:
The Word repeats itself in rhythmic strains:
Thought, vision, feeling, sense, the body's self
Are seized unutterably and he endures
An ecstasy and an immortal change;

(Savitri, Book 2, Canto 14)