sonnet Trade winds on spiral

Trade winds on spiral yin and yang are wound
And yachties zigzag doldrums yawning yuck
A melancholy sucks in screws around
To south and north typhoons and cyclones ruck
The bottom string was loose and stirred no sound
The upper string was strained and snapped on pluck
The middle string was vibrant voice it found
A way through waves of worst and best of luck
Two pals I have theyre polarised apart
Theyre joy and sadness each is overdone
They might as well coexist as morbid one
To one then other my eyes erring dart
The crystal bouy deduces hurricanes
As yacht sails labour lank air pressure drains
Chorus hurricanes cyclones typhoons