My wife shared this with me, it was a post on Facebook, that she found interesting.

Letter by Srila Prabhupada

16 June, 1969 New Vrindaban

My Dear Arundhati

“Regarding your question about offering Prasadam, whatever is offered to the Deity actually it goes through the Spiritual Master. The Spiritual Master offers to Lord Caitanya, and Lord Caitanya offers it to Krishna. Then Radha Krishna eats, or Jagannatha eats, then Caitanya Mahaprabhu eats, then the Spiritual Master eats, and it becomes Mahaprasadam. So when you offer something, you think like that and chant the Gayatri mantra, and then everything is complete. At last, ring the bell, take out the plate and wipe the place where the plate was kept.”