तिरुक्कुरल

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अगर मुदल एलू थ्थेल्लाम आदि भगवन मुदत ट्रे उलगु
அகர முதல ஏழுத்தெல்லாம் ஆதி பகவன் முதற்றே உலகு
The alphabet begins with A;So does the Universe, with God.

Tantrik Meaning(hidden meaning)

Agaram(Agraham...Sacred place,Emanating from,Hiranya garbham).

Mudhala(Mudhalawnavai,among them...all encompassing,Prominence,primordial,foremost)

Aeluththaellam(Alphabet...syllable,sound...Aksharaanaam Akaarosmi....,That which emanated from Agraham...hiranya garbham).

Aadi...the foremost,first,nothing beyond a starting point...Adhai(that which connects to the core)

Bhagavan(Lord Almighty)...Pagirbhavan...Pagavan(that which shares,manifests)/.
mudhattrea.....from him/it that emanates...starting point from where it manifests)
Ulagu....Universe(Ul-Adangiyavai-Aagum)

Like the Hiranyagarbha(apourushaeya) that arises,self exposes itself,it is its manifestation in the personification of the universe through Bhagavan which is the foremost point of creation.