I would love to see someone get 1000 anima in 20 minutes. If we assume it’s Tuesday, you can get 250 from the world boss. It’ll probably take at least 5 minutes to fly and run there from your covenant hall though, and another couple of minutes to join a group and kill the boss. Then the next easiest way is through world quests. I will assume that each zone has an average of 9 anima tokens available as rewards. Yes I’ve seen more, and I’ve also seen a zone have a single x35 token as a reward. That gives each zone 315 anima. So all the zones together would be 1260.
Sorry, but there is no way anybody is getting 1000 anima in 20 minutes as you claim.