The minibuffer is where commands are entered in. Editing can be done by commands from Insert state, namely:
Most of the Emacs keys are functional in the minibuffer. While in the minibuffer, Viper tries to make editing resemble Vi's behavior when the latter is waiting for the user to type an Ex command. In particular, you can use the regular Vi commands to edit the minibuffer. You can switch between the Vi state and Insert state at will, and even use the replace mode. Initially, the minibuffer comes up in Insert state.
Some users prefer plain Emacs bindings in the minibuffer. To this end, set
nil in .viper.
See Customization, to learn how to do this.
When the minibuffer changes Viper states, you will notice that the appearance of the text there changes as well. This is useful because the minibuffer has no mode line to tell which Vi state it is in. The appearance of the text in the minibuffer can be changed. See Viper Specials, for more details.