There are seven feasts of the Lord. Jesus died on Passover, during the feast of unleavened bread he was in the tomb; on first fruits He arose and on Shavuot (Pentecost) the Holy Spirit came. Therefore, we anticipate Jesus to fulfill the three remaining feasts at his return.
Many believe Jesus will fulfill the next three and return on some future Rosh Hashanah. The Day of Atonement pictures the opening of the books and judgment of those dead and alive. The Feast of Tabernacles pictures us receiving our mansions. The parable of the fig tree in Matthew 24 demonstrates that we are living at the end of the generation which will see the budding of the fig tree.