Original Sun

Someone said: “Sayed Burhan al-Din discourses very well, yet he quotes Sana’i too frequently.”
Rumi answered: What you say is true: the sun is excellent, yet it gives light. Is that a fault? Using Sana’i’s words casts light on his discourse. The sun casts light on things, and through that light it is possible to see. The purpose of light is to see. After all, this sun in our heaven illuminates things that have no use. But the real sun shows things that are of use. This worldly sun is a reflection  and a metaphor. That real sun is the true sun. Do you yearn for the real sun and seek the light of knowledge? Then be expectant of understanding and learning something from every teacher and every friend. We know of that other sun, apart from our physical sun, from which the realities and inner truths are revealed. Yet this partial knowledge that draws you, and through which you feel pleasure, is but a branch of that great knowledge and a ray of it. This ray is calling you to the original sun.
Fihi Ma Fihi - Discourse 56