The rapid growth of the elderly population underscores the importance of ensuring meaningful and prosperous ageing. Social inclusion plays a central role in realizing this by encouraging equal participation of older people in various aspects of social, economic and cultural life. This research uses a literature review method to explore the concept of social inclusion and its impact on older people's well-being and meaning in life. Results show that inclusive practices such as age-friendly environments and community-based programs significantly improve mental health, reduce social isolation and strengthen social identity. However, structural, cultural and psychosocial barriers such as limited access to services, ageism and low self-confidence hinder older people's active participation in society. The study also highlights the relevance of psychosocial theories such as Activity Theory and Role Sustainability Theory in explaining how social engagement and social role sustainability positively impact older people's life satisfaction. The study concludes with policy recommendations that emphasize the importance of cross-sector collaboration, cultural contextualization, and empowerment strategies to ensure that older people not only receive care, but are also valued and actively involved in social life.