

1 This state is believed to develop through systematic mental training involving a combination of concentration, nonconceptual observation, and discernment. Tranquility and stillness of mind, as described in the Buddhist Nikāyas, b are believed to reflect a natural settling of thoughts and emotions, in which there is stability of attention, sensory clarity, and equanimity of affect and behavior. Given the heavy demand of modern life on cognitive load, managing the onslaught of ongoing sensory and mental events throughout daily life and improving efficiency of mental processing is of high concern.

“Monkey mind” is a metaphor for the mind's natural tendency to be restless- jumping from one thought or feeling to another, as a monkey swings from limb to limb. Yet, left to its musings, it is common for the mind to experience a relentless stream of evaluative thoughts, emotions, or feelings without much effort. What are the phenomenological characteristics of a restful mind? With eyes closed, removed from external distraction, a state of wakeful relaxation may easily be cultivated. Implications for future research are discussed. A neurophenomenological approach to probing modality-specific forms of concentration and nonconceptual awareness is presented that may improve our understanding of the resting state. In this article, we present a theoretical analysis and plausible neurocognitive framework of the restful mind, in which we attempt to clarify potentially adaptive contributions of both mind wandering and mindful awareness through the lens of the extant neurocognitive literature on intrinsic network activity, meditation, and emerging descriptions of stillness and nonduality. Instead of an inverse relationship between mindfulness and mind wandering, a more nuanced characterization of mindfulness may involve skillful toggling back and forth between conceptual and nonconceptual processes and networks supporting each state, to meet the contextually specified demands of the situation. Unfortunately, such distinctions fail to acknowledge similarities and interactions between the two states.

On the other hand, mindful awareness is frequently described as a focus on present sensory input without cognitive elaboration or emotional reactivity, and is associated with improved task performance and decreased stress-related symptomology. Spontaneous mind wandering is typically associated with self-reflective states that contribute to negative processing of the past, worrying/fantasizing about the future, and disruption of primary task performance. Mind wandering and mindfulness are often described as divergent mental states with opposing effects on cognitive performance and mental health.
