Moved by the Holy Spirit, he had come into the temple at the same time Jesus was brought in by His parents. Simeon knew instantly that Jesus was the one that he had been waiting for and so he took Jesus in his arms and blessed Him. As he did, he said that he could now depart in peace according to God’s word to him because he had seen His solution. Meaning that he had seen the promised Jesus, the promised Messiah so now he was ready to die.
Imagine someone being so sure that what God had said would come to pass, that they were willing to die after it was fulfilled. I can only imagine the joy that must have filled his heart when he realized that finally he was holding God’s promised Messiah. Simeon knew what the coming of the Messiah would bring to the world. And we too can thank God today for Jesus, because through Him and His salvation, we too will have eternal life.