From my reading of the use of the temple, the outer temple was for the people and the inner part of the temple was for the chief priest alone, the holy of holies so to speak where the Ark was kept. The veil separates the two.
When Jesus, who brought a new covenant of God to the people including non-Israelites, died the veil was rent, that lawful separation of the people from the holy presence of God was done away with and each person can now come to that place through faith and belief through Christ.
God's salvation though the mediation of priests and rabbis was ended and the reaching of salvation of each individual through Christ began.
Previously, the salvation of God was available only through Israelite bloodlines. That ended, too.