Om Namasivaya Nama
The Self is in Me is the Self everywhere is called self experience (vignanam). The cause for liberation (Moksham) from transmigration is the realisation of one's identity with Brahman. The wise men attain Brahman by direct experience than book knowledge (jnanam).
Once we become the nature of Brahman (Bhrahma Bhootham) he/she will not return to the transmigration world for whats-soever reason, because he himself is Brahman so there is no come back. Brahman is absolute bliss without a second.Once should realize only by way of direct experience rather than book knowledge.
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