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Invasives

Turtles All the Way Down

Invasives is Aza Holmes’s preferred name for intrusive thoughts, a metaphor that makes their arrival feel foreign and their persistence like an ecological takeover. The expression gives shape to an experience she cannot simply dismiss: a thought can begin as a passing possibility, then occupy her attention so completely that she is left trying to resist it or distract herself from it. Its significance reaches beyond a label for symptoms. Invasives names Aza’s struggle to separate herself from thoughts she does not choose, and to understand what remains of a self when control feels uncertain.

Name and Metaphor

Aza explains that Dr. Karen Singh uses the clinical term intrusives, but that she heard invasives the first time and prefers the word. The difference matters to her because the second term carries an image of movement and spread: like invasive weeds, these thoughts seem to come into her biosphere from a distant place and then grow beyond her control. The metaphor makes the thoughts feel less like deliberate products of her own mind than like arrivals across a boundary. At the same time, the image is not reassuring. Once the thoughts take hold, they can spread until they crowd out other mental activity.

Aza distinguishes the experience from the brief, unwanted thoughts she believes most people have. Her example is the sudden possibility of jumping when looking out from a bridge. For many people, such a thought is strange but fleeting; for someone caught in an invasive, it may become the only thought available, continually present or something to be distracted from. The distinction is not simply between having and not having an unsettling thought. It is between a thought that passes and one that commandeers attention.

The term also expresses Aza’s uncertainty about mental ownership. She wants to choose which thoughts count as hers, yet describes the invasive as something that arrives and takes over rather than something she elects to think. The metaphor therefore holds two ideas together: the thought occurs within her mind, but feels as though it has crossed into it from elsewhere. Invasives gives that contradiction a compact, recurring form without resolving it.

How an Invasive Takes Hold

The episode involving the Bandage on the finger shows the metaphor at work through a particular chain of attention. At home, while watching a time-traveling crime show with Aza’s mother, Aza remembers Davis looking at her finger and holding her hand. The memory is followed by the thought that she should unwrap the bandage to check for infection. She understands that she does not want to do this and identifies the thought as an invasive, but recognition does not make it stop.

Aza tries to use a strategy learned through cognitive behavioral therapy: she reminds herself that she is not her thoughts and imagines clicking an X in the thought’s top corner. The relief, if it comes, lasts only briefly. The thought returns with reasons to check: the cafeteria may not have been sanitary, the finger may have encountered river water, or it may have touched something that touched the water. Each qualification leaves space for another possibility. Aza’s attempt to reassure herself that the wound is almost certainly not infected is undermined by the uncertainty contained in almost.

The sequence turns an ordinary wound and a small piece of dressing into the focus of repeated checking. Aza excuses herself to the bathroom and removes the Bandage on the finger. There is no blood, but she sees possible moisture on the pad and holds it up to the yellow bathroom light. The scene ends with that uncertainty sharpened rather than settled: the pad definitely looks moist to her. The passage does not establish that the finger is infected; it shows how the demand for certainty can persist even when checking supplies new material for doubt.

Thought, Choice, and Treatment

Aza connects the invasives to a broader disagreement about whether thoughts can be chosen. A quotation from William James claims that the greatest weapon against stress is the ability to choose one thought over another. Aza responds that she can no more choose her thoughts than choose her name. To her, James describes thought as a voluntary selection, whereas her experience is closer to destiny: thoughts arrive without her consent and can undermine the sense that consciousness is something she directs.

This difference also appears in Aza’s memories of speaking with her mother as a child. Her mother’s advice was to stop thinking about distressing subjects; Aza says Davis understood that choosing not to think is precisely what she cannot do. The contrast is not presented as proof that thought is wholly beyond influence. Rather, it clarifies why a simple instruction to stop thinking cannot answer Aza’s experience of an invasive that keeps returning.

In a session with Dr. Karen Singh, the therapist asks whether Aza’s rumination or intrusive thoughts have increased. Aza says they continue to intrude. When asked for an example, she describes imagining that the organisms living inside her consume her food and are, in some sense, part of her. She cannot locate a pure inner self untouched by bodily life; the image leaves her wondering whether she has any more of a soul than the bacteria do. Her account extends the invasion metaphor from a thought entering consciousness to a fear that the self itself has no uncontaminated interior.

Dr. Karen Singh proposes trying exposure response therapy again. Aza had previously practiced touching her callused finger to a dirty surface and then refraining from cleaning it or covering it with a bandage. She says the treatment had helped for a while, but now remembers chiefly how frightened it made her and cannot bear to repeat it. She also admits she does not take Lexapro every day because taking it frightens her. Her concern is not only about medication’s effects: she worries that if a pill changes her, it may alter what counts as the self. She wants the demon gone, yet finds the idea of removing it by means of a pill troubling. These details show both the availability and the limits of strategies for responding to the thoughts; neither the treatment nor the metaphor offers an effortless solution.

The Self Beyond the Thought

Dr. Karen Singh observes that Aza often understands experience through metaphors, naming consciousness as a bus, a prison cell, a spiral, a whirlpool, a loop, or a scribbled circle. Invasives belongs to this vocabulary, but it is especially suited to the problem of mental agency: it imagines thoughts as arrivals that cross a border, while leaving the border’s ownership uncertain. The recurring metaphor does not demonstrate that Aza’s thoughts literally come from outside her. It makes legible how alien and difficult to govern they feel.

That uncertainty connects to Aza’s larger question about whether there is a self independent of circumstances. She wonders whether she would remain the same person with or without money, a boyfriend, or a particular school, and describes herself as a story told by forces she does not control. She links that feeling to thoughts she cannot choose and to bodily conditions she does not decide. In this frame, invasives are not an isolated concern: they intensify the question of whether a person is the author of inner life or only the place where events occur.

Dr. Karen Singh answers that Aza gives her thoughts too much power and distinguishes the thoughts from the person who has them. Aza challenges that separation with the familiar claim that thinking proves existence. The therapist invokes Descartes’s formulation through doubt: even if reality is uncertain, the act of doubting establishes that the doubter exists. The exchange does not make the invasive disappear, but it offers a counterweight to Aza’s fear that an involuntary thought makes her less real or less herself. Invasives thus names both an experience of lost control and the unresolved effort to keep that experience from becoming a complete definition of identity.

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