Sorry for bringing out this topic from so long ago.
This question (you can change your encoding to Chinese Simplified
by changing Browser settings) asks - "In order to understand our
mind and realise our Buddha Nature, is Karmic Cleansing
required"?
My answer is Yes... because people with low capacities, karmas will
obstruct them from liberation. Even in Zen traditions methods of
karmic cleansing are practised... so it's not really only confined
to the Vajrayana.
But once the person sees his Buddha Nature, that where the real
work of Buddhism begins.
Just like after you realise the bright shining nature of the
mirror, you will wipe the rest of the dust away to reveal the
mirror perfectly. Thus perfecting Buddhahood.
Wiping the dust is likened to cleansing of the 8th Consciousness,
or the Alaya Consciousness (the storehouse for karmic seeds.. and
also where memories are kept).
However to the enlightened Karma no longer obstructs them. Karmic
effects arise and ceases itself... the mind does not become
affected.
