what's the name of that streetcar in n'awlins

Oh yeah . . . Desire

Okay then, "desire" is a sense of longing  or hoping for a person, object, or outcome. The same sense is expressed by emotions such as "craving". 

When a person desires something or someone, their sense of longing is excited by the enjoyment or the thought of the item or person, and they want to take actions to obtain their goal. 

The motivational aspect of desire has long been noted by philosophers; Thomas Hobbes asserted that human desire is the fundamental motivation of all human action.

Typically, we tend to think of desire as an emotion that is, arising from our mental status, akin to affection or anger or grief or surprise or ecstasy. But this is probably not the case. Many scientists and psychologists now believe that desire is, in fact, a bodily urge, more analogous to hunger or the blood's need for oxygen. 

For anyone who has been maddeningly in love, driven to the edge of despair by an unquenchable desire for another, this probably doesn't seem so far-fetched.

 According to clinical psychologist Dr. Rob Dobrenski (who can be found over at shrinktalk.net) "in many ways we can't control what we desire because it is a hard-wired emotional and physiological response" The, uh, "good doctor" is talking specifically about sexual desire. 

No surprise there: desire and sexuality are practically inextricable. The word "desire" probably brings to mind tawdry romance novels, adult-only activities, and a longing for sexual connection. 

Sexual desire may in fact be the only type of desire; psychoanalytic theory (?) holds that all other forms of desire and creative energy are the result of rerouted sexual energy - better known as (and often called) "your libido" - towards other endeavors.

So, therefore, the bodily urge of desire is only sexual in nature; everything else is an emotional state developed out of this primary desire.
 
Alledgedly

Damn!!!! 

I Have absolutely no idea where I was going there - stream of consciousness being what it is, (that and rewatching that stupid video on Masters and Johnson) - but, I do know where I'm going now . . . back to All Bar One, after that dissertation, I definitely need that scotch!

Prost!