The aim of this thesis was to explore existential loneliness from the perspective of older migrants. The phenomenon was examined through the lived experiences of both older migrants and non-migrants, as well as through the perceptions of healthcare support staff involved in their care. The thesis includes four qualitative studies: individual interviews (Studies I and II), lifeworld interviews (Study III), and focus group discussions (Study IV). Different analytical approaches were applied: interpretive description (Thorne, 2004, 2016) in Study I, thematic analysis in Study II, phenomenological analysis based on Reflective Lifeworld Research in Study III, and focus group methodology (Krueger & Casey, 2015) in Study IV.

The findings reveal that existential loneliness was particularly prominent early in the migration process, often linked to the loss of a familiar lifeworld (II and III). Additional triggers included thoughts about death and dying in a foreign country, as well as feelings of existential guilt (II). The results also highlight a deep need for meaning, belonging, and opportunities to maintain or rediscover spiritual practices (I–III). Healthcare support staff perceived existential loneliness among older migrants as a sense of alienation and longing for home (IV). Despite their motivation to provide compassionate care, they reported challenges in addressing these experiences, citing time constraints and limited cultural knowledge as significant barriers.

An awareness of and a sensitivity to what lies between the lines in interpersonal encounters, ranging from fears to hopes, are of importance when encountering older migrants experiencing existential loneliness. Existential loneliness can lead to significant suffering. For older migrants, having the opportunity to share their life stories and reflect on their experiences can be particularly beneficial, as it helps create meaning and context in their current situation.