In John 14:16 according to Catholic Church teaching who is the Spirit of Truth?

2018-06-19 10:10:44

"And I will ask the Father, and He will give you another Advocate to be with you forever — the Spirit of truth"

(John14:16)

From Jesus words the Spirit of Truth is the Holy Spirit, but if we consider the succeeding verses below...It's describing the role of the Holy Spirit as a Teacher of Faith and someone who will testify about in full about who Jesus is.

But the Advocate, the Holy Spirit, whom the Father will send in My name, will teach you all things and will remind you of everything I have told you. (John14:26)

When the Advocate comes, whom I will send to you from the Father — the Spirit of truth who goes out from the Father — He will testify about Me.

(John15:26)

My question is from the Catholic teaching is the Spirit of Truth a person whom the Holy Spirit chosen to dwell to testify to become the teacher and guide of the Apostles?