D.Litt et Phil. / The main objective of this study was to investigate the effect of a contemplation meditation intervention aimed at developing great compassion on the psychological well-being of a group of adolescents. A supporting aim of this study was to elucidate conceptualisations of psychological well-being and contemplation meditation (Mahayana Buddhist analytical meditation and placement meditation) theory. The subjects of happiness and well-being have been focused upon in the East for thousands of years in philosophical theorisation and methodology (e.g. Buddhism) (Gyatso, 1995, 2000, 2001a, 2002a, 2005, 2007, 2010). In the West, although comparatively lagging behind, there has been increased interest in these topics since the advent of positive psychology (Compton, 2005; Peterson & Seligman, 2004; Ryff & Singer, 2008). In the past two decades, Eastern wisdom has also become more incorporated into Western psychology. For example, mindfulness meditation has been extensively integrated into Western stress reduction and clinical therapies (e.g. Kabat-Zinn, 1982, 2003, 2009; Schroevers & Brandsma, 2010). Less is known, however, about other forms of meditation, particularly contemplation meditation. Specifically, Mahayana Buddhist theory explains that contemplation and meditation on compassion and wisdom leads to permanent inner peace and optimal happiness, which has largely been overlooked in psychology. Furthermore, regarding Western positive mental health interventions, there is still limited research on how to foster well-being specifically in adolescents. Moreover, Huebner and Diener (2008) have noted that subjective well-being research in adults exceeds subjective well-being research in youth. Additionally, there is minimal research on psychological well-being as understood from the eudaimonic perspective, in comparison to hedonic subjective well-being (Keyes, 2009). The present study thus attempts to expand knowledge on increasing psychological well-being in adolescents by also drawing on Eastern theorisation and methodology.