If you are mindful of something, you think about it and consider it when taking action. We must be mindful of the consequences of selfishness = aware. mindful of sth remembering a particular rule or fact and thinking about it when you are making decisions about what to do = conscious of
bearing in mind; attentive to; "ever mindful of her health"; "mindful of his responsibilities"; "mindful of these criticisms, I shall attempt to justify my action"