I guard the gateway to your soul when beads flow and dust blows. I am not alive yet still I grow.

Upon one of its towers a princess is kept, with a dungeon below, and a moat surrounding every last inch. Keeping the king and queens home safe.

Im noble a shining example thats me Im refined and stable Im valuable see? Youll have a grand time if you have me at tea I fly in the skies and roll over land In fine circles I travel Im in high demand Warning! Im toxic when things dont go as planned

When breath grows thin and panic near, I bring relief when lungs won’t clear. I ride in pockets, light and spare, a breath of mist that brings you air.

Gliding through Venice, Or among the clouds in Cape Town, I can lift your spirit high, And bring you back down. What am I?