Board Thread:Warhammer 40k General Discussion/@comment-45.23.243.3-20160601125812

Everyone can agree that psychics draw their power from the warp and the current state warp is created from emotions. A psychic from any psychic race can tap into the warp to power their abilities. But the Tyranids are an exogalactic race. Not from the milky way, so How do the Tyranids draw on their psychic powers and cast a shadow in the warp? Do they use the warp? Does the warp extend across universe? Or do the Tyranids generate their their own verion of the Nid Warp, how are they able to cast a shadow in the "real" warp? any ideas or comments? 