You can just PhR w/o activating. In order to benefit though, you need to set a clear purpose or outcome in your quiet scene or deep alpha state of mind.
After you are finished w/ PhRing, go back to the quiet scene & visualize whatever it is you are PhRing for.
Lastly, don't look back. I'm serious. Don't look back. Just pretend it's all there & working. The more often you do this, the greater the neural connections will be & it will work for you.
At the end of 1 year, THEN look back 