“be filled with the Spirit” (Ephesians 5:18) is to be controlled by the Holy Spirit. This is a present continuous action and requires a believer to be (a) daily yielded to God, (b) daily in repentance with confession with godly sorrow, (c) daily allowing the word of God to richly indwell the inner man. Being controlled by the Holy Spirit empowers a believer (a) daily in spiritual battle (Spirit versus flesh) and, (b) daily in living out the person and character and conduct of Christ and in being obedient to the will of God.
Blessed are Those Who Mourn
We do everything we can in life to avoid sorrow and grief, but there is a certain kind of mourning the Bible tells us we ought to do. We are called to take the reality and wickedness of sin seriously and mourn over it. Our hearts should be broken over our sin, knowing that it grieves the heart of God. This kind of godly sorrow is good and right because it leads us to repentance, which in turn, leads us to joy and comfort and peace with God.