We can enter the holy of holies now because the veil was torn at the death of Jesus on Calvary.
Heaven wasn't made available right after the Cross or ascension. Christ had to 1st enter the Holy of Holies for us & sit at the right hand of power while His enemies were made His footstool. At His Parousia, they drank the fruit of the vine ANEW in the kingdom of heaven.
Hebrews explains how salvation or redemption would be sealed by His second appearing (over the skies of Jerusalem) when He put down those who were persecuting the church "with tribulation" ~see 2Thess.1.
No more were the dead sequestered in sheol as disembodied spirits awaiting a time to rise to their glorious inheritance in heaven.
Hebrews makes it quite clear that Christ's 2nd appearing was to seal salvation for the Hebrew Christians who left the city (1st the Jew then the Greek)
Hebrew 1:1- 2 NKJV,
God’s Supreme Revelation
1 God, who at various times and in various ways spoke in time past to the fathers by the prophets, 2 has in these last days
[of old covenant Israel- this written about AD65]spoken to us by
His Son, whom He has appointed heir of all things, through whom also He made the worlds;
Hebrews 9 in its entirety:
The Earthly Sanctuary
1 Then indeed, even the first covenant had ordinances of divine service and the earthly sanctuary. 2 For a tabernacle was prepared: the first part, in which waswere the golden pot that had the manna, Aaron’s rod that budded, and the tablets of the covenant; 5 and above it were the cherubim of glory overshadowing the mercy seat. Of these things we cannot now speak in detail.Limitations of the Earthly Service
the lampstand, the table, and the showbread, which is called the sanctuary; 3 and behind the second veil, the part of the tabernacle which is called the Holiest of All, 4 which had the golden censer and the ark of the covenant overlaid on all sides with gold, in which
6 Now when these things had been thus prepared, the priests always went into the first part of the tabernacle, performing the services. 7 But into the second part the high priest went alone once a year, not without blood, which he offered for himself and for the people’s sins committed in ignorance; 8 the Holy Spirit indicating this, that the way into the Holiest of All was not yet made manifest while the first tabernacle was still standing. 9 It was symbolic for the present time in which both gifts and sacrifices are offered which cannot make him who performed the service perfect in regard to the conscience— 10 concerned only with foods and drinks, various washings, and fleshly ordinances imposed until the time of reformation.The Heavenly Sanctuary
11 But Christ came as High Priest of the good things to come,[a] with the greater and more perfect tabernacle not made with hands, that is, not of this creation. 12 Not with the blood of goats and calves, but with His own blood He entered the Most Holy Place once for all, having obtained eternal redemption. 13 For if the blood of bulls and goats and the ashes of a heifer, sprinkling the unclean, sanctifies for the purifying of the flesh, 14 how much more shall the blood of Christ, who through the eternal Spirit offered Himself without spot to God, cleanse your conscience from dead works to serve the living God? 15 And for this reason He is the Mediator of the new covenant, by means of death, for the redemption of the transgressions under the first covenant, that those who are called may receive the promise of the eternal inheritance.The Mediator’s Death Necessary
16 For where there is a testament, there must also of necessity be the death of the testator. 17 For a testament is in force after men are dead, since it has no power at all while the testator lives. 18 Therefore not even the first covenant “This is the blood of the covenant which God has commanded you.â€[b] 21 Then likewise he sprinkled with blood both the tabernacle and all the vessels of the ministry. 22 And according to the law almost all things are purified with blood, and without shedding of blood there is no remission.Greatness of Christ’s Sacrifice
was dedicated without blood. 19 For when Moses had spoken every precept to all the people according to the law, he took the blood of calves and goats, with water, scarlet wool, and hyssop, and sprinkled both the book itself and all the people, 20 saying,
23 Therefore it was necessary that the copies of the things in the heavens should be purified with these, but the heavenly things themselves with better sacrifices than these. 24 For Christ has not entered the holy places made with hands, which are copies of the true, but into heaven itself, now to appear in the presence of God for us; 25 not that He should offer Himself often, as the high priest enters the Most Holy Place every year with blood of another— 26 He then would have had to suffer often since the foundation of the world; but now, once at the end of the ages, He has appeared to put away sin by the sacrifice of Himself. 27 And as it is appointed for men to die once, but after this the judgment, 28 so Christ was offered once to bear the sins of many. To those who eagerly wait for Him He will appear a second time, apart from sin, for salvation.
The Cross was for sin (1st advent) the Parousia(2nd advent) for salvation:
Luke 21:25-28 NKJV
The Coming of the Son of Man
25 “And there will be signs in the sun, in the moon, and in the stars; and on the earth distress of nations, with perplexity, the sea and the waves roaring; 26 men’s hearts failing them from fear and the expectation of those things which are coming on the earth, for the powers of the heavens will be shaken. 27 Then they will see the Son of Man coming in a cloud with power and great glory. 28 Now when these things begin to happen, look up and lift up your heads, because your redempton draws near.â€
