I can't speak as an expert on each At Home program across Canada. I think in different programs the mental health piece may be stronger, but the backbone and the driver behind At Home/Chez Soi was the recognition that much of what was exasperating a person's mental health or mental illness issue was systemic, from poverty and not having the basic resources to be able to address mental health needs. By addressing the fundamental needs, the shelter and the food, they were able to have insight and manage their mental health illness.
On May 14th, 2015. See this statement in context.