Sam Koenigsberg was diagnosed with a rare malignant brain tumor in January and given two to eight years to live. For his 33rd birthday, he threw an amethyst-themed to bring his friends and family into the world of his "purple visions."

At his bathed-in-purple birthday party, Sam Koenigsberg dances with his grandmother Jaqueline McLain.

Sam Koenigsberg, who was diagnosed with a rare brain tumor in January and given two to eight years to live, pauses after dancing at his 33rd birthday party last week. He threw the celebration partly to bring his friends and family into the world of his "purple visions."

A picture of the late musician Prince, made using photos of Sam Koenigsberg's cancer cells, hangs on the wall at his party. Prince and the color purple have played a big part in Koenigsberg's life, especially since his diagnosis.

Sam Koenigsberg smokes prescribed medical marijuana at his home. Brianna Soukup/Staff Photographer