पदार्थान्वयभाषाः - The thunder bolt of Indra is made of unbreakable steel, sharpened and integrated with his body system, in his arms there is tremendous force and lustre, in his head are definite thoughts, plans and actions of high degree, and in his tongue is speech which people are anxious to hear at the closest.$(These two mantras are highly mystical, comprehensively allegorical also. They describe the divine process of evolution. We may interpret the astra as the missile of the Big Bang of the divine will which formally splits integrated Prakrti into seven stages of mahan, ahankara and the five elements, i.e., akasha, vayu, agni, apah and prthivi over three modes of satva, rajas and tamas of each. The vajra, again is the will continuously operative as Rtam, the law of the dynamics of nature. At the human level, the same dynamic works as living energy of prana in the biological system and converts food into seven ascending stages of rasa, rakta, mansa, meda, majja, asthi and virya which, properly cultivated and preserved, shines as ojas, lustre of the personality.)