One who understands that the Self is immortal and all else is perishable,can solve the mystery of death.
Death does not mean complete annihilation,
it merely means a physical change.
One should realize immortality within,and the realization must be the result of continual deep meditation.
One who realizes the Self has freed oneself from the narrow sense of body-consciousness and realizes the immortal Self.For that one death and life are alike.Such a one dwells in the kingdom of God all the time.