Part of what we pick up in looking at Jesus in the gospel is a way of viewing the whole world. That worldview informs all our values and deeply shapes our thinking and decision-making. Another part of what we absorb is greater confidence in Jesus' counsel and his promises. This has its own powerful effect on what we fear and desire and choose. Another part of what we take up from beholding the glory of Christ is greater delight in his fellowship and deeper longing to see him in heaven. This has its own liberating effect from the temptations of this world. All these have their own peculiar way of changing us into the likeness of Christ. Therefore, we should not think that pursuing likeness to Christ has no other components than just looking at Jesus. Looking at Jesus produces holiness along many different paths.
John Piper God Is the Gospel: Meditations on God's Love as the Gift of Himself