After the voice appeared in Khal's head, the Beast Essence inside his body moved, and started to flow toward his heart.
When that happened, Khal looked quite confused and even tried to stop it, but found out that shockingly he was unable to do so.
It was like some kind of strange power engulfed his body locking him in one place, while the Beast Essence inside him flowed toward his heart like a raging river.
"Well, if I can't control it, then let's watch what will happen." thought Khal and waited patiently to see what will occur.
Inside his body, through the tiny vein-like channels that created a complex and vast web-like system, the Beast Essence finally arrived at Khal's heart and started to swirl around it.
"Let's see wh-, argh!"
*BA-THUMP!*
Like stabbing a sharp iron sword right into his chest, Khal felt himself almost fainting just from the sudden pain in his chest.