The first is the ordinary usage, "an expression of what can be seen in itself and through which other things can be seen, like the sun". In Arabic the word "light" may also refer to the eye, through which perception takes place, and this may be a more appropriate interpretation.[6] The "eye" of the intellect is an even more perfect organ of perception, and "light" may be used to refer to this organ. In this sense "light" may refer to Muhammad, and to a lesser extent to the other prophets and religious scholars.