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A brief review of empirical and philosophical literature suggests that delusion formation may play an adaptive role, followed by a discussion of the findings of an in-depth interview study with people experiencing delusions. This paper argues that delusional.cc belief can play a short-term protective role, and discusses its implications for understanding psychotic symptoms, stigma associated with mental health issues, and treatment options.

A rational belief is formed based on solid evidence and is open to revision when new evidence makes it less likely that it is true. As opposed to this, a person with a delusion will hold on to their belief regardless of evidence.

A few examples are the delusion of persecution (everyone hates me) and the delusion of grandeur (exaggerated self-worth). Due to reasoning biases, such as wishful thinking, reality denial, and jumping to conclusion on limited evidence, these beliefs are subject to reasoning biases.

A There is a theory of delusion formation that alleges that delusions are motivated in some or all cases (Bortolotti, 2010). To point negative events not at oneself but at others, a delusion of persecution may be developed. A person with delusions of grandeur may be protecting themselves against low self-esteem. Delusions can have psychological benefits for a person, as demonstrated by these examples.

A Motivated delusion's origin and content are explained by a defense mechanism. Motivated delusions are defensive reactions that can prevent self-esteem loss and deal with negative emotions. The value people attach to certain beliefs (often unconsciously) explains why they hold them. In response to good news, they revise their beliefs, but ignore bad news in order to maintain a positive view of themselves.

In Shortly, motivated delusions can lead to the formation or maintenance of delusions. A person with motivated delusions is able to avoid negative emotions and low self-esteem (McKay et al., 2005).

Motivated delusions (or self-deception) cause beliefs to be shaped by desires (Bénabou & Tirole, 2016). A man may mistakenly believe that he is in a happy relationship when his partner is having an affair, for example. He holds firmly to his beliefs about his partner's fidelity and the strength of his relationship despite any evidence that would contradict them.

The psychological costs of motivated delusions (a form of self-trap) are likely to be high, however. Delusions adversely affect well-being and undermine interpersonal relationships (Coltheart, 2015). People with persecutory delusions avoid threatening situations and are emotionally anxious about the content of their delusions. Due to the lack of a "shared reality" and common goals, family members of those suffering from delusions may be strained or broken.

Bortolotti (2010) argues that challenging a delusional belief is not a good idea if the psychological benefits outweigh the potential harms. If a therapist believes that challenging a delusion would be ineffective or disruptive, they may decide not to challenge it (Freeman et al., 2004).

In the movie Marguerite (2015), this ethical dilemma is portrayed. An eccentric woman with delusions of grandeur is examined in Marguerite. She is a wealthy woman who loves music and opera. Although she is not a good singer, she loves to sing for her friends. She has kept her fantasy both from her friends and from her husband. We are left wondering whether it is advisable to challenge her fantasy? Her friends and clinicians advise the family members not to challenge her delusion because making her see reality would be devastating. Having delusions is part of who she is, and without them, her life would be meaningless and empty.