When the mind is sluggish
The discourse emphasizes investigation, energy and rapture: qualities that can enliven attention.
MN 118 describes how mindfulness meditation develops seven factors of awakening and how these lead to knowledge and freedom.
In the mindfulness-of-breathing discourse, established mindfulness supports investigation; investigation rouses energy; energy supports rapture, followed by tranquility, concentration and equanimity. The discourse says these factors rely on seclusion, fading away and cessation, and ripen as letting go.
Mindfulness of BreathingWhenever a mendicant meditates by observing an aspect of the body, at that time their mindfulness is established and lucid. At such a time, a mendicant has initiated the awakening factor of mindfulness; they develop it and perfect it.
As they live mindfully in this way they investigate, explore, and inquire into that principle with wisdom. At such a time, a mendicant has initiated the awakening factor of investigation of principles; they develop it and perfect it.
As they investigate principles with wisdom in this way their energy is roused up and unflagging. At such a time, a mendicant has initiated the awakening factor of energy; they develop it and perfect it.
When they’re energetic, rapture not of the flesh arises. At such a time, a mendicant has initiated the awakening factor of rapture; they develop it and perfect it.
When the mind is full of rapture, the body and mind become tranquil. At such a time, a mendicant has initiated the awakening factor of tranquility; they develop it and perfect it.
When the body is tranquil and they feel bliss, the mind becomes immersed in samādhi. At such a time, a mendicant has initiated the awakening factor of immersion; they develop it and perfect it.
They closely watch over that mind immersed in samādhi. At such a time, a mendicant has initiated the awakening factor of equanimity; they develop it and perfect it.
SN 46.53 uses the image of tending a fire. The helpful response depends on whether the mind is sluggish or restless. Mindfulness is useful in both cases.
The discourse emphasizes investigation, energy and rapture: qualities that can enliven attention.
It emphasizes tranquility, concentration and equanimity: qualities that help the mind settle.
In SN 51.15, Ānanda explains that the desire to reach a destination subsides on arrival. The dialogue uses this to explain purposeful cultivation directed toward liberation. The instruction to let go does not make developing the path unnecessary.
The Brahmin Uṇṇābha · SN 51.15Ṭhānissaro Bhikkhu’s translation of SN 46.53 uses “persistence” for energy and “rapture” for joy.
Passages translated by Bhikkhu Sujato, SuttaCentral, CC0. The wording is reproduced from the cited discourse.