It is claimed that long deceased family members may appear to warn of upcoming danger, such as with the famous phantom canoe in 1886 that many reportedly saw on Lake Tarawera, that is believed to have been an omen for the volcanic eruption that occurred eleven days later.
Taniwha are guardian monsters that reside in bodies of water such as rivers or lakes and can appear as sharks, whales, dragons or even floating logs.
[3] Sometimes, when a person was nearing death, beyond hope of further living, a procedure known as tuku wairua was traditionally performed by a tohunga priest, which helped the spirit leave the body so it would not become restless and wander.
In modern times, a relative familiar with the procedure may perform the tuku wairua; however priests or ministers, generally Christian, may still be called to give the dying person a blessing.
For this reason, Māori families will hold unveiling services and blessings of gravestones of those who have been gone for a year or longer as a way of remembering and paying respects to those who have died.