The wallet is a key management tool. It only stores key information and does not contain specific token assets. The key in the wallet consists of a pair of private and public keys. The user signs with the private key, proves ownership of the asset, confirms the transaction information, and all confirmed transaction information is stored in the blockchain.
Keystore, mnemonic, and private keys can all be used to import wallets, where Keystore requires password verification and mnemonics and private keys can be imported directly. When using mnemonics and private keys, be sure to pay attention to the surrounding environment to ensure security.