@ChessMaster, I have found it difficult to deferentiate between physical and emotional needs. Remember 'A hungry man is an angry man'? I'd say emotional needs occur together with physical ones.

But when we are talking about mental health, we are talking about matters related to perception.

Perception is meant to help control mechanisms in energy systems; thus mental ailments occur when the perceptual system isn't helping to create equilibrium in the overall or 'formal' system.

This state of disequilibrium presents itself as a set of symptoms.

A look at the major psychiatric models shows a consistency and perhaps truth of the 'energic' model that I have given.

For example, regression will definitely hinder formal equilibrium because one will always be out of time. So are are electro-chemical imbalances also consistent with this 'energic' model.

This model also explains behavior during 'mid-life crisis', ageing and anti-ageing, and institutional behavior.

That is, mental health issues are not just human but extend to non human energic systems.

MM belongs here!

Can you give examples of purely physical needs?

If an illusion is a perceptual experience that corresponds to an experience already 'established' in the past, but doesn't elicit similar relationships; then regression is the sustainance of an illusion.

That is, regression is a 'refusal' to learn. I believe regression is due to 'excessive' trauma.

I say 'excess' because life generally involves trauma and 'entropy'. That is, there's an energic threshold for a 'fixation' to occur. (Imagine how an apparatus can transform brain waves into graphic pictures. We can use it to find the threshold value.)

That is, most mental ailments are PTSD's. Differences in naming are accounted for by 'enormity' of effects (damage to world view and relations), explanations on ailment's cause, and characteristics of symptoms.

One important thing we can deduce is that society and culture are formed along the justification of trauma, and the promise of ultimate equilibrium and pleasure.

This is how 'normal' gets to be defined by institutions and their representatives.

But what happens when cultural values and institutions are altered by 'exogenous' forces like 'globalization'?

Ideas about what is, and is not 'normal' are weakened, and opportunistic infections abound.

Finally, there's identity among 'normal', 'good', and 'true'.

That is, you cannot have one and miss the other. But then all these are the Self. The ultimate 'I'.

Mental ailments are negations of human being.

My encounters with humans and animals, and my own experiences do affirm purely physical needs.

A dog in his meal wont pause to greet a friend, unless the latter has more food.

Eating is pleasurable and preoccupying. People are judged by their clothing, so clothes are psychological symbols.

For shelter, please remember one can live any where, so how one defines shelter is an important issue. It will even determine how this need is met. Emotions are everywhere.

In fact, if you look carefully,one can easily see that emotions are like physics' 'strong forces' or gravity.

These forces manifest themselves physically.

Yes. You can learn from regression. In fact, one should always seek to learn from them.

As I have tried to show the emotional and physical happen together. That is, every thing is identity.

Animals behave intelligently regarding every thing.

Caveman is a technological level.