Absorption is a way to exaggerate and amplify attention, the effect of which is the sense of getting ‘lost in’ and ‘fully engaged with’ experience so that the periphery is eliminated.
Fogel provides the core theoretical definition of absorption as the amplification of focal attention that eliminates peripheral awareness, distinguishing four forms: normal, dissociative, ruminative, and addictive.
, Body Sense: The Science and Practice of Embodied Self-Awareness, 2009thesis