Board Thread:Episode Discussion/@comment-410526-20160702223237/@comment-10390252-20160704194705

A lot depends on what the Grimm really are, which hasn't ever been nailed down beyond the fact  that they are not natural beings (at least not according to humans view of what classifies 'natural').

Personally, I think that the Schnee summonings are more like Velvet's weapons - energy marionettes based on memory. However, there is a certain discipline that must be learned to make it work; you need to let their reality in your memory flow rather than try to consciously recall it.