When we think of family…

We often see a group of people connected by blood ties and shared experiences.

In psychology, however, we look deeper – at the family as a system, which operates according to its own rules, reacts to changes, and strives to maintain balance.

The creator of systems theory was the biologist and philosopher Ludwig von Bertalanffy.
His concept was based on the idea that every system – including the family – is a whole in which all elements are interconnected. If something changes in one area, it affects the other parts.

Family – a system of interconnected vessels

In a healthy family system, there is balance.
Every member has their own role, tasks, and space.
Predictability emerges – we know what to expect from others, and what the boundaries and rules are.

This does not mean a lack of chaos – as that is a natural part of life – but in a healthy family, it is able to self-regulate.

Imagine a family consisting of a mom, a dad, and two children – Ania and Janek.
Ania is sensitive and creative, the dad is a realistic strategist, the mom takes care of order and emotions, and Janek values peace and stability.
Each person brings something different, but together they form a whole.

When everything is working, the family functions like a well-synchronized mechanism – it might jam occasionally, but it keeps going.
However, if a sudden change occurs in the system (e.g. addiction, illness, divorce, job loss), the balance is disrupted.
Then the entire family – not just the person directly affected by the problem – experiences the consequences of the crisis.

Subsystems, alliances, and coalitions

Every family consists of smaller subsystems:

- marital,

- parental,

- sibling.

Within these, various relationships form – some healthy, others less so.

- An alliance is a bond based on support, understanding, and shared goals.

- A coalition occurs when two people unite against someone else in the family (e.g., a mother and daughter against the father).

Such arrangements can be unconscious, but they have a huge impact on the atmosphere at home.
In a healthy system, alliances strengthen relationships, while coalitions – if they last too long – lead to tension and exclusion.

Family roles – who is who in the system

From a systems perspective, everyone plays a certain role:
caregiver, rebel, mediator, perfectionist, victim, or rescuer.

These roles often form unconsciously, based on family history and beliefs.
They are complementary – if someone takes on the role of the "strong" one, someone else must be the "weaker" one.

The problem arises when roles become too rigid.
A child who has been a "peacemaker" in their parents' conflicts since they were little may not know how to set boundaries in adult life.

The family system works like a mechanism that constantly strives for balance – even if it maintains it at the expense of someone's well-being.

Boundaries – the foundation of a healthy system

Boundaries in a family define where one "self" ends and another begins.
They can be:

- physical (doors, private space),

- emotional (the right to one's own feelings, secrets, opinions).

Boundaries that are too rigid lead to isolation – everyone lives "alongside" each other.
Boundaries that are too blurred cause chaos – no one knows what belongs to whom or who is responsible for what.
A healthy family is one where boundaries are flexible: they protect but do not shut out.

Family like slime – flexible, yet holding together

A family can be compared to slime – a substance that changes shape but does not lose its cohesion.
Sometimes it is firmer, sometimes more stretchable, but it always remains a whole.

Every change in one part of it affects the rest.
That is why the process of change in a family never concerns just one person.

A healthy family system is not one in which there are no conflicts, but one that can survive, transform, and use them for growth.