B"H in Sefer Hamidos - the Alef Bet Book we learn:
7. Sometimes the Tzaddik comes to moving from place to place, so that
when he comes to the World to Come, he will remember all the places he
had been, and through this good will come to all those places (t.n.
See previous – book one #150).
From here we can learn a very very powerful rectification - because
when someone says the holy name Na Nach Nachma Nachman MeUman - he is
a tzadik - so before saying Nanach, one can make a short confession to
the Holy One Merciful G-d and recount different low places where he
has fallen in the past, and then by saying Na Nach Nachma Nachman
MeUman he will invoke G-d's infinite mercy to bring rectification to
It would be worthy to write about this at length and even compose a
text for such a rectification, may we merit to this, in merit of the
Great blessings of Na Nach Nachmu Nachman Meuman!