Revelation 6:9-11: "When he opened the fifth seal, I saw under the altar the souls of those who had been slain for the word of God and for the witness they had borne. They cried out with a loud voice, 'O Sovereign Lord, holy and true, how long before you will judge and avenge our blood on those who dwell on the earth?' Then they were each given a white robe and told to rest a little longer, until the number of their fellow servants and their brothers should be complete, who were to be killed as they themselves had been." Here these killed saints are in heaven.
Selections from 2 Corinthians 5: "For we know that if the tent that is our earthly home is destroyed, we have a building from God...that what is mortal may be swallowed up by life...we know that while we are at home in the body we are away from the Lord...and we would rather be away from the body and at home with the Lord." Paul clearly thought he would live on after death, with God.
Genesis 2:7 And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.
Ecc 12:7 then shall the dust return to the earth as it was: and the spirit shall return unto God who gave it.
We return to the dust of the ground when this physical body dies and our breath/spirit returns to God as we wait for Gods final judgment when Christ returns.
This body/flesh dies and deteriorates as it turns back to dust while in the ground. The breath/spirit goes back to God who gave it, Ecc 12:7. The soul which makes up the conscious part of ones being is that of thought, action and emotion. The spiritual nature of man regarded as immortal and separable from the body/flesh at death and susceptible to happiness or misery in a future state. Without the spirit/breath from God our soul would not be alive as spirit and soul are connected, Genesis 2:7.
2 Corinthians 5:1 For we know that if our earthly house of this tabernacle were dissolved, we have a building of God, an house not made with hands, eternal in the heavens. 2 For in this we groan, earnestly desiring to be clothed upon with our house which is from heaven: 3 If so be that being clothed we shall not be found naked. 4 For we that are in this tabernacle do groan, being burdened: not for that we would be unclothed, but clothed upon, that mortality might be swallowed up of life. 5 Now he that hath wrought us for the selfsame thing is God, who also hath given unto us the earnest of the Spirit. 6 Therefore we are always confident, knowing that, whilst we are at home in the body, we are absent from the Lord: 7 (For we walk by faith, not by sight
8 We are confident, I say, and willing rather to be absent from the body, and to be present with the Lord.
vs. 1 is speaking about the tabernacle of God that is within us as we are the Temple of God, 1 Corinthians 3:16, 17, and when we physically die we will have eternal life with Him in the New Jerusalem
vs. 2 we desire to be in our new home, the New Jerusalem, that will be ushered down from heaven at the end of days, Rev 21
vs. 3 we are clothed in Gods righteousness as we will not be found naked, Isaiah 61:10
vs. 4 We are the Temple of God, but yet we do have burdens as we still live in this fleshly body waiting for immortality when Christ returns, 1 Corinthians 15:51-54
vs. 5 basic as we have Gods Spirit dwelling in us as we need to walk in the Spirit and not in the flesh, Galatians 5:16, 17
vs. 6 we are confident knowing that if we are walking in the flesh we are absent from God because flesh and Spirit can not mix, Galatians 5:17
vs. 7 we walk by faith, which is Christ Jesus as we seek those things from above and not the things of this world, Colossians 3:1-4
vs. 8 we are confident if we are walking in the Spirit of God (Holy Spirit) we are no longer following the lust of the flesh, 1 John 2:16
Absent from the body and present with the Lord means that we are no longer in the flesh, but now walking in the Spirit having fellowship with God while still being here on earth.