Using a grounded theory perspective, this article focuses on experiences of participation in relation to home among very old people who are living alone. Eight people selected from the larger ENABLE-AGE Project were interviewed. Data analysis identified the core category as "home as the locus and origin for participation" with two main categories ("performance-oriented participation" and "togetherness-oriented participation"). The findings indicate that the home is the origin for participation both out of the home and within the home. However, as older people's health declines, the home becomes the explicit locus for participation. Participation successively changes from taking part in more physically demanding activities out of the home to...