In recent months at the funeral home, we have been using those terms in memorial printed material.
SUNRISE-- the beginning of life.
SUNSET-- the conclusion of life.
Grieving families respond well to the balm in those terms.
Sunrise gentles the pain and chaos of birth--and certainly leads away from the database that so much of life pivots on (date of birth.)
Sunset, again, gentles the pain and chaos of death--and leads us away from tubes and beeping monitor and silence (date of death.)
The length and scope of the deceased's life shimmers between those shores; the crossing from east to west becomes a journey to reflect upon and celebrate.
Consider using this concept as a frame for your condolence note. It will be memorable.