The foremost of all the Vaishnavas who reside at Navadwip is Sri Advaita Acarya, whose virtuous presence has made all the worlds blessed. He is the most pre-eminent preceptor in all fields including knowledge, renunciation and devotion. In explaining Krsna-bhakti he is like unto Lord Shankara (Sada Shiva) himself, and whatever scriptures that exist within the three worlds he explains in the light of Krsna-bhakti.
With the intense eagerness he continually worships the Shalagram of Sri Krsna with Tulasi manjaris and Ganges water. By the momentum of his spiritual force, his loud shouts pierce the coverings of this universe and, resounding throughout Vaikuntha, reach the ears of Sri Krsna. Hearing this loving summons saturated with devotion, Sri Krsna advents Himself.
Excerpt from: http://www.salagram.net/parishad31.htm