Read John 20:19-23
19 It was late that Sunday evening, and the disciples were gathered together behind locked doors, because they were afraid of the Jewish authorities. Then Jesus came and stood among them. “Peace be with you,” he said. 20After saying this, he showed them his hands and his side. The disciples were filled with joy at seeing the Lord. 21Jesus said to them again, “Peace be with you. As the Father sent me, so I send you.” 22Then he breathed on them and said, “Receive the Holy Spirit. 23If you forgive people’s sins, they are forgiven; if you do not forgive them, they are not forgiven.”
When Jesus meets with the disciples on Easter Sunday (according to John's gospel) he breathed on them and said 'Receive the Holy Spirit'. And then he gives them the job that he had come to do - forgive sins and reconcile people to God.
Lord breathe your Holy Spirit into me and help me to go out and do the work you did; the work of reconciling people to you.