In Luke 24, women came to the tomb to prepare Jesus body, but He was not there. Angels reminded them thatJesus was to rise on the 3rd day. When the women told the disciples, they did not believe them. Instead the travelled to Emmaus, but Jesus, Himself came to preach Himself in the scriptures to them.
In verse 17, it says they were sad. But if they would have believed they would not have been sad. In verse 31 it says their eyes were opened after the broke bread with Jesus. We also need to stay close to Jesus and believe.