What if we do both ideas like maybe being a dream parasite to control one person while controlling another as a backup to latch onto and spread like a virus in otherworld. Plus it's safe to say that the people we manipulate won't remember the otherworld if the somehow coherent enough to try and stop us it's a slow but worth it process to our path of god or demi god hood to have cult following of brainwashed Meta's ,monsters, and humans who worship you. Hell we already have that in the game now we just need it to be legit quick get the fangirls and demi on the phone we will be a state religion in a decade