wipe the slate clean is a new energy, introduced on April 10 on the Healing Meditation call.
The idiom means: to forget all past problems or mistakes and start something again. Example: Rogers hoped he could wipe the slate clean and forget about his failed business.
Usage notes: also used in the form have a clean slate: She wanted to have a clean slate to start with.
We use it to erase all your made up, culturally based, negative thoughts about yourself and about the world. To let you start with an empty cup, so you can learn something useful and new.
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