Jesus uses the word picture of looking for something valuable to show how we must look for the kingdom of heaven. There is an intensity in the search. We should become laser focused.
This could be compared to Moses when he comes down from the mountain after receiving the commandments a second time. Moses’ face was so radiant that people were afraid to even come near him. The disciples encountered this radiance when they were with Jesus on the Mount of Transfiguration. Moses didn’t keep all of this glory to himself, he shared what God had said with the people. After this time, Moses puts a veil over his face so that the people would not be afraid of him and this radiance continued every time Moses had a conversation with the Lord.
When we have an encounter with the Lord, we are changed. People should notice a difference in us and we should tell them what we have found because it is like a great treasure and not a secret to be kept.