This comprehensive guide explores decentralized finance (DeFi) lending platforms and services, contrasting them with traditional financial systems. The article explains how DeFi leverages smart contracts and blockchain technology to enable permissionless, transparent borrowing and lending without intermediaries. It details DeFi lending mechanisms, showcasing advantages like consistent rates, rapid processing, and higher yields compared to traditional finance. The guide also addresses risks including impermanent loss, rug pulls, and flash loan attacks. Featured are top DeFi platforms: Aave, Compound, MakerDAO, Uniswap, and Yearn Finance, each offering unique features on Gate and other protocols. Perfect for investors seeking passive income, the guide includes an FAQ section addressing key questions about collateralization, liquidation, APY calculations, and security considerations for cryptocurrency lending participants.