Yes, there is increasing research and knowledge about how spiritual experiences can influence the human organism and lead to physiological and psychological changes. These changes are often closely linked to the processes of the brain, nervous system and endocrine system. While spiritual practices such as meditation, prayer or mindfulness have been well studied, there are also studies focussing on the effects of deep spiritual experiences. Here are some of the known effects:

1. changes in the brain through spiritual experiences

Spiritual experiences - such as the feeling of being connected to something greater, ecstatic states or the feeling of deep inner peace - can cause measurable changes in brain activity.

Activation of the prefrontal cortex: Spiritual experiences can increase activity in the prefrontal cortex, which is responsible for higher cognitive processes such as self-reflection and decision-making. People who have deep spiritual experiences often report increased clarity, insight and focus.

Reduced activity in the parietal lobe: The parietal lobe, which is responsible for the perception of space and self-localisation, often shows reduced activity during spiritual experiences. This is related to the feeling of dissolution of the self and the experience of unity with the universe or a divine being.

Changes in neurochemistry: Spiritual experiences can influence the release of neurotransmitters such as dopamine (which is associated with joy and motivation) and serotonin (which is associated with well-being and happiness). These neurotransmitters contribute to the positive feelings that many people experience after a spiritual experience.

2. neuroplasticity and spiritual experiences

Spiritual experiences can also promote synaptic plasticity, similar to intensive learning processes or emotional experiences. The brain reacts to spiritual experiences by forming new connections between neurons and strengthening existing connections.

BDNF (Brain-Derived Neurotrophic Factor): Profound spiritual experiences may stimulate the growth of new neurons and synapses by promoting neurotrophins such as BDNF. This could explain why people often feel a sense of renewal, growth or expanded perspective after spiritual experiences.

Long-term changes in brain structure: Studies of people who have had regular spiritual experiences show evidence of increased grey matter density in areas of the brain associated with emotional regulation, memory and empathy.

3. effects on the nervous system

Spiritual experiences can influence the autonomic nervous system, especially the relationship between the sympathetic nervous system (which is responsible for the "fight or flight" response) and the parasympathetic nervous system (which is responsible for relaxation and regeneration).

Vagus nerve and heart rate variability: Spiritual experiences can activate the vagus nerve, which improves heart rate variability. High heart rate variability is an indicator of good health and emotional flexibility. People who experience spiritual experiences often report a deep sense of relaxation and calm, which is mediated by the activation of the parasympathetic nervous system.

Reduced stress: Spiritual experiences can lower stress levels in the body by reducing the production of cortisol, the stress hormone. This can lead to an improvement in overall well-being and an increased ability to cope with stress and the challenges of everyday life.

4. hormonal changes

Spiritual experiences can also lead to changes in the hormonal system that influence emotional and physical well-being.

Oxytocin: Profound spiritual experiences can increase the release of oxytocin, the "bonding hormone". Oxytocin is often associated with feelings of connection, love and trust, and it can be increased after spiritual experiences. This hormone also promotes social bonding and a sense of unity with others.

Melatonin: Some studies suggest that spiritual experiences can promote the release of melatonin, a hormone that regulates sleep and has antioxidant properties. This could explain why people often report improved sleep and a sense of inner calm after spiritual experiences.

5. immune system and healing

Spiritual experiences could also have a positive influence on the immune system by promoting anti-inflammatory processes in the body and improving general well-being.

Increased immune function: Studies show that spiritual experiences can lead to an improved immune response. This could be due to the reduced production of stress hormones and increased production of anti-inflammatory molecules, which are promoted by positive emotional states and deep spiritual experiences.

Accelerated healing: People who have deep spiritual experiences often report accelerated physical healing and an increased ability to cope with pain and illness. This could be due to the psychoneuroimmunological effects of positive emotions and increased well-being.

6. emotional and psychological changes

Spiritual experiences can have a profound impact on mental health and emotional well-being.

Reduced anxiety and depression: Studies show that people who have regular spiritual experiences are less prone to anxiety and depression. This could be due to the neurochemical changes triggered by spiritual experiences, as well as increased resilience and emotional stability.

Increased self-confidence and well-being: Many people report that spiritual experiences lead to an increased sense of purpose, self-confidence and inner peace. These changes can significantly improve mental well-being and enhance quality of life.

7 Long-term effects on behaviour

Spiritual experiences can promote long-term behavioural changes that support an individual's well-being and health. People who have profound spiritual experiences often tend to behave more healthily, maintain stronger social ties and lead a more conscious life.

More compassion and empathy: Spiritual experiences often promote a feeling of compassion and empathy towards others, which leads to positive social behaviour.

Self-care and mindfulness: People who have spiritual experiences often report increased mindfulness of their physical and mental health, which contributes to a better lifestyle and stress management.

Conclusion:

Spiritual experiences have a profound effect on the human organism. They influence the brain, the nervous system, the hormonal system and even the immune system. These experiences promote synaptic plasticity, reduce stress and improve emotional and physical health. These effects are not just short-term, but can lead to long-term behavioural changes that sustainably improve well-being and quality of life.