Thoughts on Quantum mechanics...The fact that light is made up of both waves AND particles fascinates me.  I have always believed that things/experiments change and are influenced by the one doing the experiment.  But, the fact the particles DO change when they are observed is incredible.  To me, there has always been an aspect of spirituality in quantum mechanics.  The way we may affect matter...The uncertainty principle really resonates with the way I feel not everything may be explained, but some things may be.