When does the sun rise? and then he, himself, gives the reply: When the horizon turns red.
Then he continues to describe the spiritual condition of the heart in the same light : When the heart turns red with the blood of ones evil desires which have been sacrificed for the pleasure of Allah Taala, then Allah Taala causes not just one sun but many suns of His Muhabbat (Love) and Marifat (Recognition) to rise in such a heart.
The sun of this world has restrictions : It neither lights up the entire world at once, nor is its heat always the same. Moreover, whilst it brings light and warmth as it rises; it inevitably sets, leaving behind darkness.
The suns of Allahs love rise within the heart and lights it up. These suns do not set unless the person becomes a persistent sinner, without Taubah (repentance). Added to this, the one in whose heart, the suns of Allahs love and marifat have risen, will generate such light that will in turn light up the hearts of people all over the world.
The pain endured by the heart brings in its wake, happiness, satisfaction, the noor of Imaan and the sweetness of Imaan. In fact, the sorrow of the heart on this path of Divine Love is the very envy of happiness. Such a person is blessed with the companionship of Allah Taala, for Allah Taala says : I am with those of broken hearts.
Maulana Jalaluddin Rumi (Rahmatullah alaih) mentions the exceptional stage reached by those who adopt patience in abstaining from fulfilling their evil desires : On subscribing to sabr (patience) and sacrifice, the Ahh which continually and invariably issues forth from that bleeding heart transports one to the supreme and absolute stage of Wilayat. Maulana Rumi (Rahmatullah alaih) says :
Have acquired the Wilayat of the Siddiqeen
http://yunuspatel.co.za/books-Aashiq-e-Sawdiq-1-31.php