vision:

a person or sight of unusual beauty
be thou my vision, o Lord of my heart
naught be all else to me, save that thou art.
thou my best thought, by day or by night,
waking or sleeping, thy presence my light.

a mental image of what the future will or could be like
be thou my wisdom, and thou my true word;
I ever with thee and thou with me, Lord;
thou my great Father, I thy true son;
thou in me dwelling, and I with thee one.

a vivid mental image
be thou my battle shield, sword for the fight;
be thou my dignity, thou my delight;
thou my soul’s shelter, thou my high tower:
raise thou me heavenward, o Power of my power.

the ability to think about or plan the future with imagination or wisdom
riches I heed not, nor man’s empty praise,
thou mine inheritance, now and always:
thou and thou only, first in my heart,
High King of heaven, my treasure thou art.

experience of seeing someone or something in a dream
High King of heaven, my victory won,
may I reach heaven’s joys, o bright heaven’s sun!
heart of my own heart, whatever befall,
still be my vision, o Ruler of all.

as per hymn and dictionary