The mitzvah of hesped [eulogy]

Hi,

Eulogizing the dead appropriately, meaning raising one's voice and saying heartbreaking things in order to increase the crying and to remember the praises of the deceased, is a great mitzvah.

One ought to praise the deceased and even exaggerate to a small extent (working with the assumption that the deceased would have done more, had the opportunity arisen), but one may not go overboard and offer praises that are inappropriate for the deceased. One who goes overboard causes harm for himself and for the deceased.

(Code of Jewish Law Yoreh Deah 344:1; Taz Yoreh Deah 344:1)

Have a good day,
Mordechai