What wis it...?

Driving back home in the early evening from my constituency office in Dunoon  a strong wind was blowing through  the grass and trees on the hill above Glendaruel  though the sun was bright and hot.  

Suddenly I remembered that question , expressed so graphically in the Lorimer Scots language translation of the  New Testament.   

"What wis it ye gaed out tae the muirs tae luik at ?....a windilstrae, waggin i the wind ?...Na "twill"

and I couldn't get it out of my mind.