Spirals in the body generate power and stability (forearms, shoulders, hips, spine).
Body in spiral meets and moves energy (Aikido!).
Emily Dickinson (wise like my husband) on spiral communication:
Tell All The Truth
Tell all the truth but tell it slant,
Success in circuit lies,
Too bright for our infirm delight
The truth’s superb surprise;
As lightning to the children eased
With explanation kind,
The truth must dazzle gradually
Or every man be blind.