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@Castin
Yes, to a point, I think the purpose of life is to glorify God and to enjoy him forever.
That is not precisely worship, but for the purpose of what we are discussing it will suffice. Yet, note there are two aspects to this. Firstly, it is about acknowledging God and secondly, it is about being fulfilled as his creation in the way that God wants to live. Purpose and identity is thence found in God and living as he wants us to. It is not self-directed but other centred. In fact is God centred - Love God and love others.