Identify the main internal obstacle that stands between you and the wish

Ask honestly: what is the primary thing in me — not outside me — that is most likely to block this wish?

Why it works

Oettingen’s research specifies that the obstacle in mental contrasting should be internal — an emotion, a behavior, a belief, a habit — rather than purely external. Internal obstacles are modifiable; external obstacles are often not. The process of identifying the internal obstacle shifts attribution from circumstances to self, making action possible. It also activates the problem-solving system: naming the obstacle recruits the cognitive resources that can address it.

How to do it

1. Ask: "What is inside me — a feeling, a thought, a habit, a lack — that is most likely to prevent me from achieving this wish?"
2. Write the obstacle in a single, honest sentence. Do not use external factors as the primary obstacle.
3. If only external obstacles come to mind, ask: "What would I need to do or feel to navigate that external obstacle?" — the answer usually surfaces the internal one.
4. Choose the single most important obstacle, not a list.

Evidence

Internal obstacle focus is a specified element of MCII; Oettingen and colleagues distinguish between obstacle-focused and resource-focused mental contrasting with different motivational profiles. (observational)

The requirement for internal obstacles is specified by Oettingen but the evidence comparing internal-only to mixed internal-external obstacle identification is limited.

Sources

• Oettingen (2012), "Future thought and behaviour change," European Review of Social Psychology

Common mistake

Listing only external obstacles (lack of time, other people’s behavior) which makes the plan step a problem of circumstances rather than a behavioral commitment — this is the most common way WOOP stays intellectual rather than motivational.