Objectless Loving-Kindness & Compassion: Why anārambaṇā maitrīkaruṇā became unique to bodhisattvas
Abstract
This paper* analyses why anārambaṇā maitrīkaruṇā became an important and unique concept in early non-tantric Indian Mahāyāna Buddhism. Through the study of early Mahāyāna Sūtras and Śāstras, I explore what the early Mahāyāna Sūtras and Śāstras tell us about 'objectless loving-kindness and compassion' in the context of threefold maitrī and karuṇā. By examining these early Mahāyāna Sūtras and Śāstras, and also early non-Mahāyāna Pāli nikāyas, abhidhammas and commentaries, I argue that anārambaṇā maitrīkaruṇā became unique to Mahāyāna because of the fundamental shift of goal from mainstream Buddhism; why śrāvakas or Hīnayānists do not practise anārambaṇā maitrīkaruṇā is not originally because of lack of non-conceptual wisdom or lack of understanding of the emptiness of dharma, but because for śrāvakas and mainstream Buddhists maitrī and karuṇā are not essential in attaining their bodhi.
This is my 2020 article published in the Journal of the Oxford Centre for Buddhist Studies. Here is the pdf link to read.

