It is not distinctly seen how Rabu approaches and leaves the moon. Likewise the Soul cannot be seen how it leaves one body and enters another.
नोपसर्पद् विमुञ्चद् वा शशिनं दृश्यते तमः। विसृजंश्योपसर्पश्च तद्वत् पश्य शरीरिणम्॥