The Pista —Hard Nut To crack — Idiomatic.

Have a pista in hand

small one as you know

being the last in a row

I got hold of the hard strand.

 

Tried to break it with force

tried with a blow  strong

remained unperturbed in a coarse

with a hammer struck it strong.

 

The nut looked the same

I did not want to give up easily

as I had been never tame

one final strike up came out the pista.

 

Looks  like an adventure

being a hard nut to crack

size is not a matter  in a venture

invincibility being the one to be tracked.