As you read more about wLEO v2, it'll all make sense. DeFi has seen the rise of all these different AMM's. Uniswap is probably the most popular one. We can now pair tokens and enter them into Liquidity Pools. The pools can be risky, as LeoFinance found out. But they can also pay 100-130% APR. That's not including extra incentives newer tokens might offer.

Hope that helps a bit. Balancer is another AMM with a different twist. Pairs don't have to be 50/50 on Balancer and you can have more than 2 assets in the liquidity pool.