Jesus said that it will be better for us if he go, so that the holy Spirit might come to us.
My attempt at grasping the truth of that, has me recalling how in his lifetime Jesus showed himself to enemies and to indifferent people who were not moved by him.
In his speaking of the Spirit. I recall Chapter Eleven of the Book of Isaiah that describes the Spirit as the instigator of Wisdom, Understanding, Counsel. Fortitude, Knowledge and Fear of the Lord.
Isaiah wrote that of those six ir was Fear of the Lord that was his delight.