Well you see order, god of order install time, continious timeline logic and peac to obtain an universe in the materium, that is reflected reflect in a part of the warp, the immaterium.
Well chaos engender by Malal, are all the opposite unpredictible randomness, self destruction, no timeline, no logic, completly ****-up physics laws....
It is a thing that create reflect to every Materium universe in the omniverse.
Since the immaterium is just ****-up and warp is néant...
Everysoul of every being (except some exception like C'Tan god) of every alternative reality of every-universe of the entire universe is reflected one thousand tile within the warp...
It is infinite power. 0% of the warp power is everything.
Warp is a thing beyond human comprehension... As all character in warhammer 40 000 universe able to understand a minimum of the warp only see the reflect of their own universe. But it is said that the warp reflect thousand million, of universes, and even Iquote the entire omniverse.