Hebrews 10:19-25 Call To Perservere

What does it mean to “enter the Most Holy Place”? Since we enter by blood, how can this be “new and living”?  How do we “draw near to God”?  How have our hearts been sprinkled / our guilty consciences cleansed / our bodies washed?  What keeps us from holding “unswervingly” to the hope we profess?  What is the blessing of “meeting together”?