> What does "loop on itself" mean in this context? What it means is understood by looking at its converse - panic attack. Wherein, anxiety stirs some negative

> What does "loop on itself" mean in this context? What it means is understood by looking at its converse - panic attack. Wherein, anxiety stirs some negative thoughts which stirs even more anxiety which stirs more negativity and so on until the system seizes - or that has been my understanding of it. Here, positivity feeds joy which feeds more positivity etc..