Board Thread:General Discussion/@comment-60.240.118.7-20150105090527/@comment-83.60.30.71-20150503004924

Adam Warlock's Heart. Seems gory and appropriate for someone like Thanos to yank. I like it. They're not containers, they're forms made to protect the stones and also control. That's why Thor could'nt destroy the aesther in The Dark World, it wasn't in its pure form. It was liquified as protection against such acts and as a way of controling it without going insane, even though Jane Foster was dying from being the host of the Aether (of course, she's such human), but Malekith being the dude that he is was able to control it.

Thanos states that to control the Reality Stone one needed a strong mind and sense of reality, otherwise one would lose him/herself in trying to control it. However this is not the case of Jane Foster an Malekith because the Stone wasn't in its purest form and therefore couldn't be used to its full potential. Also, take into account that the Power Stone is somewhat the most important as it's needed to boost the rest of the Stones' powers to truly be able to reach the full extent of their capabilities. So the Reality Stone without the Power Stone's supercharge is less powerful, and adding the barrier not only protects it makes it even less powerful, and therefore more controlable.