Aspects of your higher self have been along the material realm many times before. And the lesson memory of these journeys is etched into the very nuances of your sacred song, it is "within" your of resonance field as you choose to activate it.
Therefore. it is paramount and key to know the difference between “learning” and “remembering”. How does one filter through all this knowledge and know what is intended for them and what is not? As you filter through it, some knowledge with resonate within as mere knowledge, while other information will give you the feeling, the sense of "Remembering".