   According to Hume’s theory of the mind, the passions (what we today would call emotions, feelings, and desires) are impressions rather than ideas (original, vivid and lively perceptions that are not copied from other perceptions). The direct passions, which include desire, aversion, hope, fear, grief, and joy, are those that “arise immediately from good or evil, from pain or pleasure” that we experience or think about in prospect (T 2.1.1.4, T 2.3.9.2); however he also groups with them some instincts of unknown origin, such as the bodily appetites and the desires that good come to those we love and harm to those we hate, which do not proceed from pain and pleasure but produce them (T 2.3.9.7). The indirect passions, primarily pride, humility (shame), love and hatred, are generated in a more complex way, but still one involving either the thought or experience of pain or pleasure.  Intentional actions are caused by the direct passions (including the instincts).  Of the indirect passions Hume says that pride, humility, love and hatred do not directly cause action; it is not clear whether he thinks this true of all the indirect passions.