In the Novi Sad city park there is an oak tree which I used to frequent for years, touching it to get energy, consulting it about eventual problems, transmitting my wishes trough it. Once I decided to do that ritual publicly, as an art performance ( in  frame of an alternative theater festival), in order to pay people's attention to the nature and its powers. In front of a huge audience I talked about historical meanings of oak tree in different cultural and religious tradition: Ancient Greeks, Celts, Jews, Slavs... After that I touched the tree in a high mental concentration sending my messages for peace into the cosmos. Later on I invited people to join me and assist in sending messages. The reaction and the effects were impressive.