9783. 'To cause a lamp to go up continually' means faith from there, and through that faith an intelligent understanding of truth and a wise discernment of good from the Lord. This is clear from the meaning of 'a lamp' as faith, and from this an intelligent understanding of truth and a wise discernment of good, dealt with in 9548. 'A lamp' means faith because Divine Truth emanating from the Lord composes the light in heaven. This light when received by the angels there, or by a person in the world, resembles a lamp; for it casts light into all parts of the mind and imparts intelligence and wisdom. This light so received is faith. But it should be remembered that faith is not a lamp or that which casts light into the mind unless it is fed by charity, and so unless it is charity. The situation with faith and charity is the same as it is with truth and good. Just as truth is the outward form of good, or good embodied in an outward form, enabling it to be seen in light, so faith is the outward form of charity, or charity embodied in an outward form. Faith furthermore is that to which truth belongs, and charity is that to which good belongs. For truth, when believed, passes into faith; and good, when loved, passes into charity. The good and truth themselves that are loved are the neighbour, and the love of the neighbour is charity.