You're voting to allow the deployment of lending markets using DIA data feeds (Oracles) (https://diadata.org/). Please refer to the related governance topic that was published on SiloDAO governance forum on Mar 28, 2023.
If the proposal passes, the core team will integrate the Silo Finance lending app (Arbitrum fork) with DIA oracles. At the moment, the Silo Lending app is only capable of deploying markets using oracles from Chainlink, Uniswap V3, and Balancer V2.