Volcano Caldera Blanca : What secrets hide inside a volcano?

what secrets hide inside a volcano?

steep and ivory in the wax-melt sun
the elephant cone stands firm - 
head and shoulders with brothers and sisters

huddled in vivid costumes, changing

as a phantom flits and darts

and we, the curious, on an unsteady ascent 
living life by foot, climbing to search 

stroking the porcelain exterior of lava

worn down to its ancient grey bones

pilgrims, we climb, seeking to learn 

what secrets are held inside

hushed by puffy cumulus

passing shadows over its jacket

whilst cirrostratus move 

like vapour trail, striping overhead 

and the pastel tides of the sky above 
now split and arch, bleeding out

a shocking rainbow

alive and keeping the mountain's secret still 

something untold written in the powder rocks

or clasped inside, held deep within

the lava fortress

until finally we stumble upon 

a sanctuary of gossamer veil -

greening: the springtime secret 

of the verdant caldera

telling for us now