are to some extent mystical, or spiritual, in nature Hausner’s (2007) ethnographic study on sadhus also supported this claim She mentioned that the sadhus often reported experiences of unity and feelings of oneness with all objects of existence, animate and inanimate The ideas of transcendence and peak experiences related to the sadhus move this discussion to another tradition of happiness research—the spiritual way to happiness In summary, positive psychology, the science of happiness, is a newer branch of psychology that focuses on positive human functioning Recently, positive psychology has grown in popularity, with much scientific research on multiple aspects of human happiness, like positive emotions, optimism and hope, subjective well-being, eudaimonic well-being, meaning in life, and even flow states and peak experiences There is another dimension of human happiness, namely spiritual happiness, which I discuss next Spiritual Approach to Happiness For the past thousands of years, various practices developed by spiritual traditions have helped people build love, find wisdom, and improve well-being (Henry, 2013) In most countries, spirituality is still an essential part of people’s lives because many people believe in some higher power For instance, in the USA, over four-fifths of the population believes in some higher power (Gallup, 2008; Pew Research, 2015) As for the expressions religiosity and spirituality, they are the same but dependent terms (Hill et al., 2000; Schlehofer, Omoto, & Adelman, 2008; Zinnbauer et al., 1997) People associate religion with belief systems that accept some higher power, institutions like the church, and associated rituals, including regular attendance at a place of worship or ceremonies focused toward a higher being In contrast, people relate to spirituality 36