Unstable

A mountain was never my thing
Too fixed, too confined
And above all, too stable and accommodating

A volcano on the other hand
Fits the bill
Perpetually restless, eruptive and vengeful
Overkill.
Boon or boom
Not up to me to judge
No-one holds it against her
But she, self-assured, holds the grudge

Strong adversary
Unreliable friend
Just keep believing you've got her figured out
Until she pops out for the roadkill
just 'round the bend.

And during the day, she runs with the wolves
And at twilight, she flies over the seas
At night, her crater implodes
Result of her 'self-created' disease
At midnight, her wrath pours out over all those down below
       and she explodes, spits, smokes them all out
                    as if there were no tomorrow.