What keeps man in zion

 Ephesians 5:19  Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;

God is omnipresent. Truly, God is present everywhere but He doesn't manifest everywhere, for man to remain in the presence of God or for the presence of God to remain with man, he must always worship in spirit. Singing spiritual songs and hymns in worship and making melody in your heart to the Lord will always connect you to zion. 

John talked about the four living creatures and the twenty-four elders "and they do not rest day or night, saying 'holy, holy, holy,' Lord God almighty, who was and is and to come!" (Revelation 4:8&11).

Man was fashioned to worship and to honor the name of God. 

For any man to remain in the presence of God, such must learn how to worship and honor God with sincere heart. 

David fought sixty four battles and lost non because he knew how to remain in God's presence. (1 chronicles 29:10-20)

"We are never, never weary of the grand old song;

    Glory to God, Hallelujah;

    We can sing it loud as ever, with our faith more strong

    Glory to God, Hallelujah.

    

Chorus:

    O the children of the Lord have a right to shout and sing

    For the way is growing bright, and our souls are on the wing;

    We are going by and by to the palace of the king;

    Glory to God, Hallelujah!

 We are lost amid the rapture of redeeming love,

    Glory to God, Hallelujah!

    We are rising on its pinions to the hills above;

    Glory to God, Hallelujah!

 We are going to a palace that is built of gold

    Glory to God, Hallelujah!

    Where the King in all His splendour we shall soon behold;

    Glory to God, Hallelujah!

 There we'll shout redeeming mercy in a glad new song,

    Glory to God, Hallelujah!

    There we'll sing the praise of Jesus with the blood-wash'd throng,

    Glory to God, Hallelujah!

Amen."