We cannot just term it finding the soul as we ourselves are the soul atman, the spirit existing in our heart. As a cosmic traveler we manifest human form to remove dross impurities within. As a soul atman we could not purify self of our own and need a medium, a body to work out our karma.
Finding soul means reaching our true identity, the spirit existing in heart. It is also termed as realizing self, realizing god, reaching state of self realization, god realization.
The moment a self realized soul leaves mortal body at the time of death, it merges with Parmatman, God Almighty permanently. Liberated from cycle of birth and death, this pure soul atman need not return into the cycle of birth and death again.
A soul atman manifests a body, manifestation after manifestation as long as it contains dross impurities within. The moment it reaches state of absolute purity, the cosmic journey of soul atman finally ends. This end state of cosmic journey is termed self realization, god realization.
The most convenient path to reaching soul atman existing in our heart is practice of pranayama (breathing exercise). Indulging in spirituality as detailed in Bhagavad Gita we can complete our spiritual journey. Practice of spirituality demands our indulgence in contemplation (chintan) all the time. Only then we can hope of completing spiritual journey satisfactorily.
Realization of self is not that easily achieved. Mahavira, Gautama Buddha even Jesus Christ and Prophet Mohammed indulged in 12 years practice of absolute celibacy for awakening their kundalini shakti fully. Full kundalini awakening announces 100% activation of brain and full activation of brain means one becoming an enlightened one, a bodhi, a Jina… a Mahavira.
Self realization announces end of cosmic journey for a seeker. The purpose of all kinds of yoga is merger of atman with Parmatman forever. As the ultimate goal of life for all human beings on mother earth is reaching state of absolute purity as a soul atman, it is desirable one indulges in journey of self realization, god realization to reach God in ones lifetime.
Thus it can be said, finding soul is the end of self realization journey.