The Spirit of Jesus is simply Jesus clad only in His Spirit, 'not seen' and eternal, Son of God, body. He is seated 'on the right side' of God (the Holy Spirit) in spirit heaven. In this format Jesus is Lord.
When the physical Jesus was crucified he lost his physical body. His Spirit body was regenerated and He rose to spirit heaven, clad only in His Spirit body, to sit on the right side of God (the Holy Spirit), as the Lord. In this Spirit only format, Jesus is ready, willing and able to make intercession with God (the Holy Spirit) on behalf of Saints/Christians.
1 Corinthians 15 King James Version (KJV)
35 But some man will say, How are the dead raised up? and with what body do they come?
44 It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body.
47 The first man is of the earth, earthy; the second man is the Lord from heaven.
Romans: 8 KJV N.T.
34 Who is he that condemneth? It is Christ that died, yea rather, that is risen again, who is even at the right hand of God, who also maketh intercession for us.
2 Corinthians 3:17King James Version (KJV)
17 Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty.
Those who wish to access, and commune with the Spirit of Jesus must seek Him in God's kingdom of heaven that is in the spirit realm.
The kingdom of God is within one:
Luke 17 King James Version (KJV)
20 And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation:
21 Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.
Jesus is currently in God's kingdom of heaven. Therefore to find the Spirit Jesus one must search within one:
The path to finding the Spirit Jesus and communing with Him is an inward human search. However this search is further clarified. Finding the Spirit Jesus and communing with Him is simply and only about searching one's own heart/spirit and discerning precisely what His Spirit has in mind for one to know, pray for, say and do:
Roman: 8 KJV N.T.
26 Likewise the Spirit (of Jesus/Spirit of Truth) also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit (of Jesus/Spirit of Truth) itself maketh intercession for us with groanings which cannot be uttered.
27 And he that searcheth the hearts knoweth what is the mind of the Spirit (of Jesus/Spirit of Truth), because he maketh intercession for the saints according to the will of God.
The above is quite automatic and easy for those who can search their heart/spirit. And herein lies the difficulty. Only a chosen few can search their heart/spirit.
To be able to search one's heart/spirit requires one to be 'converted'. This is to be aware of or awakened to, one's own heart or spirit. This is to cease being 'the dead who bury their dead'. This is described as being 'born again'.
A person who is 'converted' is described as being given by God to know truth.
The sad fact is only the chosen few ever become 'converted'. When Jesus walk physically on earth, from among all who He encountered, only the disciples were given by God to get Truth. Only they were 'converted'.
Matthews: 13 KJV N.T.
10 And the disciples came, and said unto him, Why speakest thou unto them in parables?
11 He answered and said unto them, Because it is given unto you to know the mysteries of the kingdom of heaven, but to them it is not given.
12 For whosoever hath, to him shall be given, and he shall have more abundance: but whosoever hath not, from him shall be taken away even that he hath.
13 Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.
15 For this people's heart is waxed gross, and their ears are dull of hearing, and their eyes they have closed; lest at any time they should see with their eyes and hear with their ears, and should understand with their heart, and should be converted, and I should heal them.
'Conversion' (which is to cease having a heart/spirit that is waxed gross/covered over) is necessary before one can reach and be healed by Jesus.
Only the disciples got truth from Jesus. Everyone else (the great masses who Jesus encountered) got parables. Parables were not intended to contain or deliver truth.
Primarily Jesus passes knowledge to me from His Spirit to my spirit/heart, because I am 'converted' and I love Him unconditionally. I was born 'converted':
Ephesians: 3 King James Version (KJV)
17 That Christ may dwell in your hearts by faith; that ye, being rooted and grounded in love,
18 May be able to comprehend with all saints what is the breadth, and length, and depth, and height;
19 And to know the love of Christ, which passeth knowledge, that ye might be filled with all the fulness of God.
The above is the path as laid down in the best possible way and accurately and literally recorded in the Holy KJV N.T.
There are lots more totally supporting and totally clarifying revelations in the Holy KJV N.T. Do you need the literal revelations from the Holy KJV N.T. which totally and completely confirm all of the above?