What is "willing suspension of disbelief"? How does having a willing suspension of disbelief help Mrs. Murry?

To have a
"willing suspension of disbelief" means to be able to forget what you know to be true
and accept things that are not realistic according to science. This ability helps Mrs. Murry,
who is a scientist. As a scientist, she is trained to test ideas, or hypotheses, and decide if
they are true or false based on physical evidence. However, by suspending her disbelief, she is
able to accept and believe things that...