Brenda Ueland

"Why should we all use our creative power ... ? Because there is nothing that makes people so generous, joyful, lively, bold and compassionate, so indifferent to fighting and the accumulation of objects and money."

Brenda Ueland wrote the book "If You Want to Write" more than 75 years ago. In it she sanctions aimless wandering walking and staring out the window as work for the writer. 

https://www.graywolfpress.org/author-list/brenda-ueland