The Kathopanishad Verse 2.1.10 – यदेवेह तदमुत्र यदमुत्र तदन्विह । मृत्योः स मृत्युमाप्नोति य इह नानेव पश्यति

यदेवेह तदमुत्र यदमुत्र तदन्विह ।
मृत्योः स मृत्युमाप्नोति य इह नानेव पश्यति ॥ १० ॥

yadeveha tadamutra yadamutra tadanviha |
mryutyoh sa mryutyumapnoti ya iha naneva pasyati || 10 ||

In this world the soul is abiding and pervading. In the other world too, the same soul abides and pervades. The Self (Soul, Spirit) abides and pervades in the other world, the same soul is present in this world too. The person who sees different and many and is ignorant of the one only, after death he gets more cycles of death. He is born again and again experiencing endless cycles of fear, disease and death.