Owen: Sanctification

I recently stumbled onto a collection of papers from the 1981 Westminster Conference in London, over which Martyn Lloyd-Jones presided throughout the 1970s. One helpful essay is by Daniel Webber and is entitled 'Sanctifying the Inner Life.' Webber quotes this definition of sanctification given by John Owen. Can it be improved upon?

Sanctification is an immediate work of the Spirit of God on the souls of believers, purifying and cleansing of their natures from the pollution and uncleanness of sin, renewing in them the image of God, and thereby enabling them, from a spiritual and habitual principle of grace, to yield obedience unto God, according unto the tenor and terms of the new covenant, by virtue of the life and death of Jesus Christ.

--Daniel Webber, 'Sanctifying the Inner Life,' in Aspects of Sanctification (Westminster Conference, 1981), 45; quoting Owen, Works, 3:386