It is through human interaction that the power of the stones seems to come alive. It is probable that ancient peoples held celebrations and rituals within the circle itself to bless the crops, mark rites of passage etc. Even today, visitors seem impelled to walk the circle in a purposeful manner, stand in the centre, touch the stones, dowse, hug the individual megaliths. This input seems to release and accentuate the inherent power of the place, linking earth, sky and participant to the stones and the landscape beyond.