The pearl of great price is the Church (all those redeemed through Christ) and the great price that was paid was His death (the one great sacrifice for sins) and the blood that He shed for our redemption. Those who have been saved are the purchased possession of God and Christ. The same interpretation applies to the treasure that was hidden in a field.
I think finding the pearl, is finding the faith of Christ by which we can believe the Spirit of Christ that dwell in the body of believers.
He or his word is the pearl of great price the gospel .
It cost him putting his own life in jeopardy for us. Not in respect the church but her husband Christ. The unseen will of our father in heaven hidden in the parables or proverbs. Spoken of as hidden Manna in Revelation 2 The word manna literally meaning. "What is it?". Pearl in color taste like the sweet honey of the word like the gate we enter into fellowship.
Revelation 21:21And the twelve gates were twelve pearls: every several gate was of one pearl: and the street of the city was pure gold, as it were transparent glass.
Exodus 16:31 And the house of Israel called the name thereof Manna: and it was like coriander seed, white; and the taste of it was like wafers made with honey.
Emphasizing the color of pearl
Numbers 11:7 And the manna was as coriander seed, and the colour thereof as the colour of bdellium.