Trending away from the philosophical bent this thread has taken…
Core strengthening has had such an immediate and noticeable effect on me from my start with fields. As soon as I play it I can feel the activity in my core muscles.
My wife, who is not into any of this, has noticed beneficial effects from brain regeneration and pain control.
That said, there are so many things that could be blocking someone from experiencing the effects. You’d almost want to make them sit through a round of Ego Diss, SLR, and Energy Blockage Removal before even playing your “proof” field. And at the end of the day, they’d still need to accept the energy, which is the one major caveat. These fields don’t violate free will. Sure, I think some bypass the conscious mind and take affect through approval of the higher self and/or subconscious. But it’s harder for a field to be effective or noticeable without the conscious acceptance of it.
On another note, try environmental fields. Keep positive vibes energy looping and when someone mentions how they’re in an inexplicably good mood just show them the track title.