“She saw that all phenomena arose, abided, and fell away. She saw that even knowing this arose, abided, and fell away. Then she knew there was nothing more than this, no ground, nothing to lean on, stronger than the cane she held. Nothing to lean upon at all, and no one leaning… And she opened the clenched fist in her mind and let go, and fell, into the midst of everything.” - The moment that Teijitsu, 18th century abbess of Hakujuan, near Eiheiji, Japan learned to let go.

Mastering Bitcoin, 3rd edition, by Andreas M. Antonopoulos (O’Reilly), available for free online.

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bitcoinbook/BOOK.md at develop · bitcoinbook/bitcoinbook

Mastering Bitcoin 3rd Edition - Programming the Open Blockchain - bitcoinbook/bitcoinbook