Urge comes from Latin urgere which means ‘press’ or ‘drive’. It has various synonyms like, desire, need, wish, yearning and include lust, impulse and hankering.
When we say we feel an urge, we might mean that we crave to have something like an ice-cream after lunch (desire, yearning), or we have to go to loo (need, impulse) or of course, we need a partner to spend a night with (lust). All of these are coming from a drive, be it of hunger, of sweetness, of bodily sensation or other similar phenomenon.
Now, attention needs to be directed towards the fact that while the some needs arise organically, like hunger, thirst and excretory needs, some are semi-organic and some are completely artificial.
Artificial desires can be easily judged as those which depend on something that we have made into a habit and is not aligned with our bodily need. Like I have this habit of drinking a lot of Tea . It is not my bodily need and I have myself created a craving for it. Similarly ice-creams, chocolates, music, road trips, movies and extending it to all those activities that you perform to fill in your time or feel better. Simply put, had these things not been invented, there would have been no desire of it either. Skipping these doesn’t cause any adverse effects on the body, neither having it frequently cause any problems.
The semi-organic structures are the real problem. These are habits which blast open such dangerous doors in the body which are hard to close. Sexual pleasure, intoxication, sleeping pills, smoking and also our old enemy appear on the list. Their presence initially provides relief and slowly twines itself with inner structures which has already been discussed in books like Brain on ■■■■ and EasyPeasy method. These habits operate by combining the organic and the artificial.
*What we call URGE is actually a flipping coin between Needs and our own Artificial habit structure. We initially thought it to be our past time. We meant it to remain like our ice-cream craving but due to dopamine rush it soon gets more and more frequent. However, if we analyse closely it is still our own icecream craving structure. I usually drink tea when I get up. It is then that I feel its absence the most.
In semi-organic structures, the rising levels of sexual drive, search for occasions to convince the body to have the drug. It chooses occasions. So since we began the habit as our me-time filler, whenever we are alone or free, it comes rushing at us. Also, since we have linked it to our sexual system, it uses any and every occasion that it gets to convince the body to have it.*
Therefore, any sign or symbol that reminds of our sexual drive gets translated by the mind into a green signal for our semi.organic machinery to start rolling. And hence, any dream about females, a single picture, a single shot, even profile picture of your blonde classmate can push you back. It is not an urge for anything, it is simply a short circuit in your brain system, which has linked the compartment of desire to the compartment of craving and artificial habit. It keeps telling your brain that you have just woke up and must have your tea.
I know that people before me have said it more eloquently, however, since you asked for it here is my opinion. So there can never be an urge for PMO. There are sexual thoughts, that we have always had, which has got linked to our own Artificial habit structure of pastime pleasure. People who practice mindfulness attempt to lower down the intensity of organic sexual energy while those who focus on building a strict tight schedule try to break that artificial pasttime habit structure. There will always be sexual energy. There will always be free time. However we must realise that neither it is a bodily want nor it is a healthy pastime. And hence, there can never be an urge for PMO.