What is darkness therapy?
Its essence is staying in complete darkness twenty-four hours a day for a period ranging from one to seven weeks; the retreat can also be combined with fasting. If you choose not to fast, a guide brings food and is attentive to your experience and current state.
The method is presented as a way of reaching deeper self-knowledge and discovering one’s own identity.
The original text states that during a dark retreat the senses become sharper, unconscious processes become more pronounced and concentration may improve, and it also links darkness and melatonin with possible health benefits, immune support and physical condition. It presents the retreat as particularly suitable for people living with long-term stress.
The original text also presents darkness therapy as potentially helpful for mental wellbeing and lifestyle-related health problems.
Origins of darkness therapy
Stays in caves, underground spaces and specially adapted dwellings appear throughout the history of many cultures and religions, so it is difficult to identify a single origin for this practice of self-exploration. India, Tibet and Japan are often associated with its development and popularisation.
Buddhists and dark retreats
The text refers to a Buddhist dark-retreat practice known as yangtik, describing stays of seven to forty-nine days.
Colombian shamans
The text describes shamanic training involving very long periods of seclusion in a dark hut.
Indigenous North American traditions
The text describes vision-seeking practices involving fasting and several days of isolation in complete darkness.
Cave practices of the Etruscans, Italic peoples and Romans
In Italian underground sites there are sacred spaces carved into rock. The text describes some of these places as recreating an experience of the afterlife, with symbolic elements such as a river of the dead or a room flooded with light for communication with the deceased or higher beings. Darkness and time spent in it are described as having an important initiatory role.
In the light everything feels clearer and more visible; darkness can bring fear and uncertainty. Yet the text presents even deep darkness as a possible source of insight that can make us see life from a different perspective, which it describes as a goal of traditional Tibetan dark-retreat practice.
When you are left with yourself
Compared with life outside, the change is fundamental. In ordinary conditions we are constantly exposed to dozens or hundreds of impressions, many of which draw attention away from our inner world—whether we want them to or not. Sometimes we even seek those distractions deliberately.
How often have you turned on the television, called friends or gone out for a drink simply to avoid being alone with your own problems? Those options disappear during a dark retreat. The usual “endless carousel” slows down, and after some time some people describe deep experiences such as light phenomena, visions, joy or an unfamiliar sense of freedom.
Experts hold differing views on darkness therapy and techniques involving restricted external stimulation. Some see them as a source of deep experiences that may resemble rites of passage. Others point to a lack of evidence for therapeutic effectiveness or criticise the commercial use of darkness therapy by people without appropriate therapeutic qualifications.
The text notes that dark retreats are not suitable for everyone and specifically warns that a person with a significant unresolved traumatic experience should not undertake one without appropriate consideration and professional advice.
Darkness therapy, sometimes called “dark therapy” in English, is described here as a method that uses prolonged darkness with the aim of producing therapeutic effects on body and mind. The concept is based on the idea that a completely dark environment may support sleep, relaxation, stress reduction and cognitive functioning by removing external distractions.
Darkness therapy may include:
Extended time in complete darkness:
Temporary or extended stays in complete darkness without external light. The text presents this as potentially supporting sleep, inner calm and meditation.
No light:
Staying in a room without artificial light changes light exposure and is associated with melatonin, a hormone involved in regulating sleep.
Calming the nervous system:
The original text says that some studies suggest a dark environment may support nervous-system recovery, concentration and overall mental wellbeing.
You can find further context, practical information and a broader guide to the topic at Laskavá tma – about darkness therapy.
A dark retreat is not a substitute for medical, psychological or psychotherapeutic care, and individual experiences can vary considerably.