"Your 'soul' endures in embodiment and between embodiment. Your 'soul' will continue to live until it is transmuted by the Flame in your heart and there is no longer this shadow self that thinks and feels apart from the Christ. Your 'soul' lives through every personality (embodiment) that you use. Today you have a name, you were born into a family, you live - if fortunate - approximately threescore and ten years and then you 'pass away' as a personality. That personality is no more, but the 'soul' of you, in the etheric garment, influences each personality which you become in each succeeding incarnation. If you were to look at an unbroken stream of one hundred of your Earth lives, you would find that the 'soul' was more or less the same through each personality."
January 1, 1970
https://en.wikiquote.org/wiki/Ascended_master