When I was a baby my parents used to put me to sleep in my pram and in fine weather would place it underneath a big cypress in my grandparents’ garden. Later they would come back to find me wide awake, probably having been so for a long time, not crying but quietly and contentedly contemplating the tree above. Perhaps as result of this early experience for as long as I can remember I have always had a great affection for trees. As a child looking up through the latticed branches of a spreading beech or oak I would feel sheltered from the vertigo-inducing blue sky and scudding clouds above. It just so happens that this “feeling” is absolutely correct – trees do shelter and protect us in many, many ways.