system
Given the following post, respond as if you're commenting on Reddit:
human
[STAR WARS] Why is it necessary for Sith to "bleed" their Kybers?

In the modern comics, we see that Kyber Crystals are turned red by dominating them with hatred, but my question is why is this necessary? Is it simply symbolic or does it help them in some way?
gpt
To elaborate off of what others have said, Sith philosophy is all about making the force your bitch, basically, and not being beholden to its "will." A normally attuned kyber crystal may turn against its wielder if the force wills it, and to the Jedi this is perfectly fine because the Jedi religion is based around serving the will of the force and subjecting yourself to it.

However, as the Sith want to dominate the force, they cannot allow their crystals a chance to turn against them. As a result, the crystal *must* be bled in order to subject it to their will. This even happens to crystals a jedi-turned-sith have already attuned to, as we see with Dooku's lightsaber, which he had constructed while he was a jedi.