It is very important for the Sangha to participate in praying for someone who has died. Students can sponsor a puja for the person at a Dharma center. There are many benefits for the deceased, the family of the deceased, and the sangha’s mind. It reminds us of impermanence. We can also recite prayers either at the person’s funeral or in the hospital; it helps people’s minds. When one student of a geshe passed away, the geshe did elaborate prayers for the student and took care of his family very well. It made the family feel extremely happy. When time allows, the best would be to perform the Medicine Buddha puja or recite the King of Prayers. If there is not enough time to do a Medicine Buddha puja you can perform Medicine Buddha practice with the visualization.