He means soul

a poem by Shah Pravinchandra Kasturchand

He lived in mud walled cottage;
was in company of good teacher;
practised well the good message
he learned from a good preacher.

He moved from mud walled cottage
and changed to a beautiful abode;
continued to learn higher message
from his learned preacher of God.

He now moved to a home palatial;
continued his teacher’s company.
So he took him cottage to castle
showed what his status should be.

Soul was smeared as gold in mine
soul now cleared as gold refined.