A video reading of the poem, titled "Love Letter From the Afterlife" went viral after Gibson's passing was announced -- with thousands of people saying how much comfort it had brought them.

I am more with you than I ever could have imagined,” Gibson says in the poem, written while facing a terminal illness.

Gibson was an artist and activist, whose spoken word poetry captivated millions and defied the hyperindividualism that defines this political moment. They and their wife, Megan Falley, are the subjects of a forthcoming documentary,