(As one who trusts in Christ,) do joyfully look to the future, knowing that the Everlasting God will transform your grief to gladness?
If the joy you experience on earth directs your heart to a deeper, fuller enjoyment of God – then your earthly joy will bring you into even greater gladness rather than grief.
God himself enjoys good. And we are urged to recognize, true pleasure is not found in wicked foolishness, but in wisdom.