And just to add a bit more to what I said: I'm not sure if you'll experience the same, but my own 3rd eye feels basically like an organ which has a life of its own, similar to your heart. Like having a small heart in the middle of your head, if that's a good enough analogy. It even feels like it sleeps along with the rest of my organ when I sleep, since when I wake up, it's not yet active but once I get up, and especially when doing my yoga, I start gradually feeling its presence again, and then it remains active pretty much all of the time. Once you have stimulated your 3rd eye enough to a point where it starts absorbing energy on its own, you will no longer even need to focus upon it to feel it; you will feel it spontaneously all the time. That's when it's open.
