Thus saith God - What is the meaning of life, if there is death?
(The answer to the question of the reader)
If there is death, life has no meaning. The meaning of life to continue. You have to live honestly and do not harm anyone, to care for their children.
Meaning of life is that it gives you a chance to become immortal. Life - Exam. Life - a probationary period. If you'll be successful, this trial period, you will become immortal. If not, go into oblivion forever.
Your children, passing information from generation to generation, to carry the information about you, until the day when immortality will be possible.