Create a digital art interpretation of a biblical verse, specifically Matthew 6:18 - 'That thou appear not unto men to fast, but unto thy Father which is in secret: and thy Father, which seeth in secret, shall reward thee openly.'. Imagine a hidden entity, presumably representing 'the Father', watching over a person who is conducting a fast. The entity is rewarding this person who has gained strength from their hidden spiritual practice. Incorporate elements of light to symbolize the reward being given openly.