“The kingdom of heaven is like a  treasure hidden in a field. When a man found it, he hid it again, and then in his joy went and sold all he had and bought that field.( Gospel of Mathew)

Jesus says: “Let him who seeks cease not to seek until he finds: when he finds he will be astonished; and when he is astonished he will wonder, and will reign over the universe!” (Thomas2)

1066. They [the Sages] say that the treasure of Grace-Silence, the never-leaving thought of divine Siva [i.e., the unbroken state of attention to Self] – is the real wealth. That lustrous supreme treasure, which is difficult to attain, is the wealth which is [available] only to those who have the love to destroy [all] thought.

(Ramana  Maharshi)

From the book The Garland of Guru’s Sayings