" Observations,” he wrote, “not only disturb what is to be measured, they produce it.” This doesn’t necessarily mean that we make reality with our imaginations; but it does mean that consciousness is so tied up with reality that there is no way of conceiving reality without it. Consciousness is the true bedrock of existence. "

― Eben Alexander , The Map of Heaven: How Science, Religion, and Ordinary People Are Proving the Afterlife