In the fifth part of the Ethics, Spinoza teaches that knowledge of the third kind, intuitive knowledge that sees each thing as following from God, gives rise to an intellectual love of God that is eternal. In it the mind finds blessedness, which is not the reward of virtue but virtue itself. Many read the passage as philosophical mysticism.
Intellectual Love of God
Spinoza’s amor Dei intellectualis: the joy of knowing all things in God, which is the mind’s highest freedom.
Also: amor Dei intellectualis