For example, are you referring to:
* Imperative programming: A programming paradigm where instructions are given in a step-by-step manner. This can affect how you write code and its efficiency.
* Imperative mood in language: This refers to a grammatical mood that expresses commands, requests, or instructions. This can affect the tone and formality of communication.
* Something being imperative or essential: This means something is absolutely necessary or crucial. This can affect the importance of something and the actions taken.
Please provide more context so I can give you a more accurate and relevant answer!