The brain is an Organ, it's makeup you could suggest to be billions of Microswitches with a finite number of processing nodes (Neurons) that are constantly changing their alignments, sometimes for the better sometimes for the worse.
A person perception is processed within this "Neural Network" and without
a network being present, their manifested
personality would cease to exist.
Pinocchoi's Hoof said:
When you are tired your brain doesn't shut your body down as it needs rest...You,not an organ but you, your essence,soul,spirit,being decides when you go to bed.
Actually this isn't totally true, although your brain processes events for other areas of your body to react, there are occasions where a mere decision isn't enough. You see within the brains inner workings is Chemical Synthesis and a equilibrium that can only be mirrored in the personification of a Pill popping addict that's constantly taking downer to deal with uppers, and uppers to deal with downers.
Certain events can occur in a persons life that alter their perspective and alter how their brain processes such events, this can cause inbalances within their chemical equilibrium and in turn cause drastic alterations in how many pills of a certain type the personification takes.
When this occurs of course our brain can suffer like any
Addict would, certain things (taxis's) are so positive that we become addicted and require more of the interactions that fullfill them, while others are so negative we go to any lengths not to suffer the
Come down.
You could say that some people suffer
Addictive personalities that are likely to fullfill their needs with what generates the most positive taxis's. This could be watching television, using a computer, doing a particular sport, reading a book or having sex.
If people
Drive then this would mean that they physically control their breathing, their heart and their will to exist. However this is disproven with people that are depressed or suicidal. They might whole heartedly hate living and just want to cease existing, however they physically can't do it. This proves that a number of our base functions are "automated" and this makes sense when you look towards "Survival of the Fittest". Afterall to stick round long enough to Evolve would require making sure that you can go the distance and sometimes this requires the "person" to not be able to think for themselves
Mind-Body-Soul
The mind is synthesised within the Body's "brain" organ, the Soul is either some lucid manifestation of selective viewpoints from a persons life experiences or better written as sole being the bottom of your feet. In essense the meaning of Soul stems right back from Ancient times when the world wasn't so scientifically understood and people filled in the gap with their philosophical rantings, Some of which are legendary (i.e. Aristotle) while others are just the basis of misconception. (And probably formed a religion or two)
Pinocchoi's Hoof said:
(A joint and a beer later)
Both a "Joint" and a "Beer" can release positive taxis's on a person. Each causes changes in their chemistry, some effects are obviously positive to the user while others are clearly negative. Namely with Cannabis it increases the amount of Dopamine and Seratonin in your brain, this can take weeks for your body to rehabilitate from and if used in large doses for prolonged periods it will in fact change how your brain produces those chemicals in the future. (The brain obviously tries to adapt to the increase and this is why you end up with some dope smokers suffering from Paranoid Psychosis fits on occasion)
As for Beer, it in quantity is damaging to the neural networks and can actually be seen to creat certain inhibiting effects (The main reason why some people that suffer psychiatric problems turn to the bottle to escape) however this is only a short term effect, it's long term effect through abuse can be damaged to various organs throughout the body, increases in certain types of bacteria, impairment etc. this is what you expect from a poison, which alcohol technically is, it's just you can get away with it's positive taxis's in smaller quantities. (So one beers all right, one Keg however not so good)
In both the case of the Joint and the Beer, you could ask the question.... Are you in control?
I mean a mix of the two will generate an interesting toxicological mix, which I'm sure will impair your judgement and critical thinking. So when you think are you thinking for yourself, or is it a composite of this mix?