● Lord Krishna explains to Arjuna in the Gita 10.33 :-
The Sanskrit alphabet, unlike English, has the collection of vowels as a primary list called svars . The consonants are a secondary list and are called vyanjan . The svars are the ‘shining’ sounds and the vyanjan are the ‘reflected’ sounds. The first svar is ‘a’ and it is added to the end of every consonant. From there it integrates into every word and sentence. Thus ‘a’ ( A ) , the Brahman becomes “woven into the warp and woof of everything” in the words of Late Dr. S. Radhakrishnan. This structuring is unique to the Sanskrit language.
The Imperishable akshara seeds each letter of the alphabet and becomes manifold. These voiced syllables, structured into words and sentences, give rise to action. In the Gita an entire Section 8, titled ‘Akshara Brahma Yoga’ explains how our karma arises from thought and how thought arises from the multiplicity of the Akshara Brahma.