What is this password in keychain?

[DawnC]

The keychain password is normally the same as your user password (the password you use to log in to the computer). At login, if your keychain password somehow differs from your user password, it doesn’t automatically unlock, and you’re asked to enter the keychain’s password. It’s recommended that you enter your previous user password. If this doesn’t unlock the keychain, the keychain automatically resets.    For more information, see Apple's Support Page.