Add spaces: Healthyanddynamicsitting

Answer: Healthy and dynamic sitting

Add spaces: Thesetwosmallgroupsoftravellerswerethevanguardofpartiesoflightandofdarknesswhich,likeamanandhisshadow,havegoneeversincethroughthecenturies,andeverwestward.

Answer: These two small groups of travellers were the vanguard of parties of light and of darkness which, like a man and his shadow, have gone ever since through the centuries, and ever westward.

Add spaces: Theyareprivatepropertyand,asweenter,weleavethepublicsphere.

Answer:
They are private property and, as we enter, we leave the public sphere.