It's easy to see if a person puts brick on top of brick then right before your eyes, there's a brick wall. When we pray or meditate we too project energy, but this is a little bit harder to see. Thought does produce too. Within this cycle I believe lies Karma. Otherwise, the Universe could not exist.
Synchronicity holds it all together for a reason.
Cause and Effect. God is the highest intelligence in the Universe. Karma is the teacher. If more people understood that their acts produce effects, then perhaps they would hesitate before performing bad acts.