To glorify God and have a personal relationship with him

Strength: brings an uplifting feeling and sense of purpose to one's life
Weakness: subjective behaviour and emotions are not strong foundations for a purposeful life
Strength: biblical so appeals to many Christians
Weakness: seems strange that God thrives on worship by people. Shouldn't he care for his creation anyway, whether we worship or not?
Strength: To a believer it strengthens their relationship with God
Weakness: seems very self centered. May be the main purpose of life for them but how does it help others