When Solomon had finished praying, fire came down from heaven and consumed the burnt offering and the sacrifices; and the glory of the LORD filled the temple. 2 Chronicles 7.1
The abundance of gold in the Temple of Solomon was not the reason that attracted the presence of God to Its inauguration;
Nor was the multitude the cause for His presence that day;
Instead, the physical Presence of the Most High, in the form of Fire, only happened because burnt offerings and sacrifices were presented there.
It is the altar that sanctifies, separates and consecrates the offering. Matthew 23.17,19-21
The Altar represents God;
The offering represents the offering giver;
The sacrificial offering represents the life of the offering giver.
The Spirit of God or the Spirit of the Altar is Who consecrates the offering; this is, ACCEPTS the life of the offering giver.
Cain was rejected, while Abel was ACCEPTED into the presence of God. By accepting his offering, God accepted him as well.
The physical presence of the Spirit of God was only present that day because of the multitude of lives that were sacrificed there through the sacrifices.
The burnt offerings and the sacrifices represented the dedication of the people on the Altar of God;
The family of the Most High sits at His table participating of His Bread (Jesus) and feels the joy of His presence, as mentioned in Psalm 133 of the New Jerusalem.
Behold, how good and how pleasant for brethren to dwell together in unity! It is like the precious oil upon the head, running down on the beard, the beard of Aaron, running down on the edge of his garments.
It is like the dew of Hermon, descending upon the mountains of Zion; for there the Lord commanded the blessing – Life forevermore.
The Fire of the Holy Spirit came down because the people were entirely devoted to the Lord God Almighty.