You have seals on your chakras, no amount of meditation will take those seals off. So you must burn the seals off, invoking/evoking fire into/onto the chakra and burn it until the chakra is completely clear. When your kundalini rises it usually does this for you, or at least it will burn some of...

Yes, to open the main chakra's with the hands, you would just place your hand either on the chakra, or slightly hover over it. For psi ball's just put your hands facing each other(like the meditation) and either force black energy out your palms and shape the ball, or take in black energy from...