The Buddha shares the importance of recollection of the Buddha, Dhamma, Saṅgha, one's virtue, generosity, deities, in-and-out breathing, death, body, and peace.
Paṭhama vagga - First Subchapter On One Thing
1.296
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of the Buddha. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.297
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of the Dhamma. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.298
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of the Saṅgha. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.299
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of one's virtue. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.300
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of one's generosity. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.301
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of the deities. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.302
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is mindfulness of in-and-out breathing. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.303
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of death. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.304
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is mindfulness of the body. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."
1.305
"Bhikkhus, one quality, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna. What is that one quality? It is recollection of peace. This, bhikkhus, is the one quality that, when developed and frequently practiced, leads to disenchantment, to the fading of desire, to gradual ending, to tranquility, to direct knowing, to full awakening, to Nibbāna."