And it had been revealed to him by the Holy Spirit that he would not see death before he had seen the Lord’s Christ. So he came by the Spirit into the temple. And when the parents brought in the Child Jesus, to do for Him according to the custom of the law, he took Him up in his arms and blessed God and said: “Lord, now You are letting Your servant depart in peace, according to Your word;…” – Luke 2:26-30
I have wondered why the Lord chose to bless both Christ and Simeon in this way. The event has blessed millions of others as well. Simeon was ready to go on after seeing the Lord.