What could be better than having Jesus around? According to Him, it is better for us to have the Holy Spirit around:
“But now I am going away to Him who sent Me, and not one of you asks Me, ‘Where are You going?’ Yet, because I have spoken these things to you, sorrow has filled your heart. Nevertheless, I am telling you the truth. It is for your benefit that I go away, because if I don’t go away the Counselor will not come to you. If I go, I will send Him to you. When He comes, He will convict the world about sin, righteousness, and judgment: about sin, because they do not believe in Me; about righteousness, because I am going to the Father and you will no longer see Me; and about judgment, because the ruler of this world has been judged.
“I still have many things to tell you, but you can’t bear them now. When the Spirit of truth comes, He will guide you into all the truth. For He will not speak on His own, but He will speak whatever He hears. He will also declare to you what is to come. He will glorify Me, because He will take from what is Mine and declare it to you. Everything the Father has is Mine. This is why I told you that He takes from what is Mine and will declare it to you.
(John 16:5-15 Holman Christian Standard Bible® ©)
Having the Spirit among and in us is what makes our ministry in the earth possible. It is how we will know our God so well that we will reveal to the angels and demons more about His wisdom than they know from their experiences with Him:
This grace was given to me—the least of all the saints!—to proclaim to the Gentiles the incalculable riches of the Messiah, and to shed light for all about the administration of the mystery hidden for ages in God who created all things. This is so that God’s multi-faceted wisdom may now be made known through the church to the rulers and authorities in the heavens. This is according to the purpose of the ages, which He made in the Messiah, Jesus our Lord, in whom we have boldness, access, and confidence through faith in Him.
(Ephesians 3:8-12 Holman Christian Standard Bible®©)