the bellow also breathes in air and blows out air too

यस्य धर्मविहीनस्य दिनान्यायान्ति यान्ति च।

स लोहकारभस्त्रीव श्वसन्नपि न जीवति॥

पञ्चतन्त्राद्

yasya dharmavihīnasya dinānyāyānti yānti ca|

sa lohakārabhastrīva śvasannapi na jīvati||

pañcatantrād

A quote from panchatantram..

A person whose days just come and go but his life is spent without any aherence to Dharma, virtues and morality, is just breathing in air and exhaling the air too just like a bellow in the yard of a blacksmit.. just breathing but not living

The bellow (usually made of leather) in the smithy is used by the worker to take in air from the open and direct it toward the fire..

So just like human lung, the bellow also breathes in air and blows out air too..

But then the bellow has no life.. It just gets inflated and deflated according to the movements of the hands of the worker who lets in air from one side and closes that side of the bellow and then presses it so that the air rushes through the pipe leading to the fire..

.

A fellow just living on without any sort of order and adherence to virtues is just as good as dead..

Every man who is born will have to live till he is dead..

But that life is of little use to anyone including himself..

The life has to be productive and virtuous..