The damage is still dealt fully, even though [[Worship]] makes it so your life total can't go under 1. This means you gain the full 4 life from the lifelink creature. Source: Gatherer rulings > 10/4/2004 It reduces your life total to 1, not the damage to 1. > 10/4/2004 Worship does not prevent damage. It causes some damage to be > unable to lower your life total. So any damage rendered useless by > Worship was still dealt and is counted by effects that track the > amount of damage done to a player. In addition, Worship does not > prevent loss of life, so loss of life bypasses Worship.