This was a group of angels leading the Magi directly to the Savior's home. When they saw the star, they were overjoyed. On coming to the house, they saw the Child with His mother Mary, and they bowed down and worshipped Him. Then they opened their treasures and presented Him with gifts of gold and of incense and of myrrh. The Magi's interchange with Jesus did not end with their bowing down in adoration, but extended to the more tangible presentation of their gifts of wealth to Him.
Worship never takes place just in our minds.
To the contrary, it spills over into the world of everyday life. It's not just something we do on Sabbath. It's something that we are. We are God's. And the wise men recognized they were God's and they gave of themselves.