What kind of a school culture should teachers aim to build? What is needed for this to happen?

Teachers are creators, authors and holders of a culture at school. Yer, is it possible to keep this culture alive and co-held by students as well as the new teachers who come in?
If schools and teachers want an atmosphere of open, active learning and create a space for questioning, thinking together and growing together, what would be needed to build this?
Is is not necessary for teachers of a school as a community to have a common understanding, a common sense of the spirit of school and education?
How can teachers make this happen? That is, if school is to be a place free of fear, a place of leisure and a place for active growth and learning.....?