Shams-i-Tabrīzī or Shams al-Din Mohammad was a Persian poet, who is credited as the spiritual instructor of Mewlānā Jalāl ad-Dīn Muhammad Balkhi, also known as Rumi and is referenced with great reverence in Rumi's poetic collection, in particular Diwan-i Shams-i Tabrīzī . Tradition holds that Shams taught Rumi in seclusion in Konya for a period of forty days, before fleeing for Damascus. The tomb of Shams-i Tabrīzī was recently nominated to be a UNESCO World Heritage Site. Wikipedia