Sunk or burst

From the outset an iceberg and a dormant volcano doesn’t look dangerous unless it sunk or burst ?

Restless feeling !

Restless feeling! what are you?
unspoken wish or desire suppressed
a dream unshaped or hope not met

Confused I am, a string attached?
is it the reason or conflicts there are
difficult to understand, whatever it is

Thoughts abound, though tough to utter
heart stirred deep, but yet unfurled
like a pebble just thrown, in water still

Restless feeling! what are you?
how to bury the intruder unknown
show a way out, or reveal yourself.