Our Great High Priest

As I read Hebrews 4:14 - 16 I could not help but notice the symbolism that is there and I am sure that if I saw it the original readers knew exactly what the author meant. He said, "Therefore, since we have a great high priest who has gone through the heavens, Jesus the Son of God, let us hold firmly to the faith we profess. For we do not have a high priest who is unable to sympathize with our weaknesses, but we have one who has been tempted in every way, just as we are—yet was without sin. Let us then approach the throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need."
The High Priest once a year went through the veil into the Holy of Holies to make an atonement for the people. Jesus has gone through the veil (the heavens) into the Holy of Holies (the presence of God). The High Priest did this once a year as it was always temporary but Jesus, our Great High Priest, has done it once for all.
Even after the High Priest made the atonement for the sins of the people they could not come into the presence of God themselves but our Great High Priest has opened the way so that we can go into the very presence of God with confidence that our prayers will be heard.