Sorry if this seems really ignorant - but what exactly is the holy ghost?? I understand the holy trinity and that the holy ghost is part of it, but thats as far as i can understand…haven’t a scooby

thanks
The holy ghost is the third person in the trinity it is the soul of God. Its symbol is the milk-white dove holding a olive branch! Or a flaming tongue.This heading implies two truths: The Holy Ghost is a Person really distinct as such from the Father and the Son; He is God and consubstantial with the Father and the Son.
The first statement is directly opposed to Monarchianism and to Socinianism; the second to Subordinationism, to the different forms of Arianism, and to Macedonianism in particular. The same arguments drawn from Scripture and Tradition may be used generally to prove either assertion. We will, therefore, bring forward the proofs of the two truths together, but first call particular attention to some passages that demonstrate more explicitly the distinction of personality.
Scripture
In the New Testament the word spirit and, perhaps, even the expression spirit of God signify at times the soul or man himself, inasmuch as he is under the influence of God and aspires to things above; more frequently, especially in St. Paul, they signify God acting in man; but they are used, besides, to designate not only a working of God in general, but a Divine Person, Who is neither the Father nor the Son, Who is named together with the Father, or the Son, or with Both, without the context allowing them to be identified. A few instances are given here. We read in John 14:16-17: “And I will ask the Father, and he shall give you another Paraclete, that he may abide with, you for ever. The spirit of truth, whom the world cannot receive”; and in
John 15:26: “But when the Paraclete cometh, whom I will send you from the Father, the Spirit of truth, who proceedeth from the Father, he shall give testimony of me.” St. Peter addresses his first epistle, 1:1-2, “to the strangers dispersed . . . elect, according to the foreknowledge of God the Father, unto the sanctification of the Spirit, unto obedience and sprinkling of the blood of Jesus Christ”. The Spirit of consolation and of truth is also clearly distinguished in John 16:7, 13-15, from the Son, from Whom He receives all He is to teach the Apostles, and from the Father, who has nothing that the Son also does not possess. Both send Him, but He is not separated from Them, for the Father and the Son come with Him when He descends into our souls (John 14:23).
