What is normal?

I've just started reading 'Our Sound is Our Wound' by Lucy Winkett - the Archbishop of Canterbury's lent book 2010...

I came across this in the introduction: "There is no normative experience against which everything should be measured, and when we recognize this, our relationship with God and our understanding of human beings will be only expanded and enriched."

So often we consider our personal experiences of God to be the norm for everyone; and if others don't fit into our experience or understanding we quickly judge their experience as dodgy!

God (and human beings for that matter) are so varied and so unique we need to give others a large space to experience God and life!

What is normal anyway??