The historical Buddha from approximately 2,500 years ago, didn't teach about "twin flames." nor did he teach about "souls".These aren't Buddhist beliefs.
The Buddha said there was rebirth (which was already a belief in India) but he didn't teach about "reincarnation" which is a Tibetan Buddhist belief about "tulkus" (reincarnate lamas).which began with the Karmapas around the 12th century.
The Buddha didn't teach the Tibetan Bardo Thodol, it was composed by Padmasabhava who went from India to Tibet around the 9th century.
Regarding "anatta" (not-self) which was mentioned earlier in the topic, reading what was taught by the Buddha in this sutta might be helpful:
SN 22.59 Anatta-lakkhana Sutta: The Discourse on the Not-self Characteristic
https://www.accesstoinsight.org/tipi....059.nymo.html
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