Bhagavad Gita · Chapter 2: The Path of Understanding

Bhagavad Gita 2.28

avyaktādīni bhūtāni vyaktamadhyāni bhārata | avyaktanidhanānyeva tatra kā paridevanā ||

Beings are unmanifest in their beginning, manifest in the middle, and unmanifest again at their end, Arjuna. What is there to lament in this?

Modern context

We do not know where a person was before birth, nor where they are after death. We see only the middle part. Krishna asks why we should treat the return to the unseen as a catastrophe when we never grieved the unseen from which the person came.