Everyone's heart is blocked for the most part. The world is proof of this.
One of the three main knots/blockages occurs here.
I've actually seen what you're talking about believe it or not, kinda looked like a vajra shape. I was doing something else though so I'm unsure if my experience was related to the heart.
Sounds like you have a plan though, go for it! If you're interested check out the Drukama tradition.
|