Liquidity pools are pools of tokens locked in smart contracts that provide liquidity in decentralized exchanges in an attempt to attenuate the problems caused by the illiquidity typical of such systems.
Liquidity Pool as a means of earning money (swap fees) ?
That means that anyone can lend their tokens to a liquidity pool. As an incentive, this person gets all the swap fees that are paid by swapping with the liquidity they provide.
When there is no liquidity the wrapped version are worthless, we, a.k.a. the unstoppable #PRCY team and angels must provide the liquidity in the first place. All projects fail without liquidity, period.