When St. Paul went to Mars Hill, located in Athens, Greece to preach Christ to the Greeks (Gentiles), he did so by an alluding to the fact that the Greeks had a place in their temple dedicated to the unknown God. (Acts 17: 22-31)
In antiquity and at present, a seal is the joining to two parts so that they do not separate. Secondly, it is a liquid that has a symbol stamped on it that denotes that it belongs to a certain person or entity.
On the day that we remember the descent of the Holy Spirit upon the Apostles gathered in the upper room, as recorded in the Book of Acts chapter 2, we are preparing ourselves to be “refilled” with the Holy Spirit.
After the resurrection of Jesus Christ, he appears to two of his disciples in his post-resurrection unrecognizable form, while they had departed from Jerusalem and on the road to Emmaus.