Bhagavad Gita 6.43

तत्र तं बुद्धिसंयोगं लभते पौर्वदेहिकम्।यतते च ततो भूयः संसिद्धौ कुरुनन्दन॥

tatra taṃ buddhisaṃyogaṃ labhate paurvadehikam |yatate ca tato bhūyaḥ saṃsiddhau kurunandana ||

Then he comes into contact with the knowledge acquired in his former body and strives even more for perfection, O Arjuna.

Then, the experience acquired in his former life will revive, and with it, he will more eagerly strive for perfection than before.

Our plain-language meaning of this verse is waiting for scholar review.