Jesus was a treasure to Paul. What Paul saw in Jesus was what the man in Jesus’s parable saw in the field:
The kingdom of heaven is like treasure hidden in a field, which a man found and covered up. Then in his joy he goes and sells all that he has and buys that field. (Matthew 13:44)
Fifteen minutes before the man saw the treasure, would he have been content to sell everything and buy the field? No way. Fifteen minutes after he saw it he was off to the auctioneer. What was the difference? He saw the treasure.