Some mystics taught that the human soul comes from God and that the last thing that God does before putting a soul into the body is to kiss the soul. The soul then goes through life always dimly remembering that kiss, a kiss of perfect love, and the soul measures all of life’s loves and kisses against that primordial perfect kiss.
The ancient Greek Stoics taught something similar, that souls pre-existed inside of God and that God, before putting a soul into a body, would blot out the memory of its pre-existence. But the soul would then be always unconsciously drawn towards God because, having come from God, the soul would always dimly remember its real home, God, and ache to return there.
In one rather interesting version of this notion, they taught that God put the soul into the body only when the baby was already fully formed in its mother’s womb. Immediately after putting the soul into the body, God would seal off the memory of its pre-existence by physically shutting the baby’s lips against its ever speaking of its pre-existence. That’s why we have a little cleft under our noses, just above center of our lips. It’s where God’s finger sealed our lips. That is why whenever we are struggling to remember something, our index finger instinctively rises to that cleft under our nose. We are trying to retrieve a primordial memory.
Our souls dimly remember once having known perfect love and perfect beauty. But, in this life, we never quite encounter that perfection, even as we forever ache for someone or something to meet us at that depth. This creates in us a moral loneliness, a longing for what we term a soulmate, namely, a longing for someone who can genuinely recognize, share, and respect what’s deepest in us.