Structure and Lines - the basis for existence? the basic for life?

More than 10 years ago I had the job to go in nature and to find something to draw with the topic structure. I did not draw a fence or something which I would call man made. I decided to sit in the grass and started to draw the grass and plants, to find somehow a structure. Since then this topic keeps ongoing in my mind and everywhere lines and structure...

Come and see - collect your ideas about it. How would be life without structure. How would be nature without structure.