Heart Sutra—abbreviation for Prajnaparamitahrdaya Sutra—in 600
scrolls originates from Mahaprajnaparamita Sutra. Its extremely allencompassing
content was condensed into Diamond Sutra and, further,
into the 260-character, quintessentially prajna-transmitting Heart Sutra.
Prajna denotes great wisdom in reaching yonder shore, and
prajnaparamita, that in going from the present lifetime, from
transmigration between rebirths and redeaths, into nirvana. Heart
Sutra recounts suchness of existents realized and true void known.
Prajna cultivators and learners may yet to awaken to the suchness of
existents, but, in unbroken remembrance and chanting, in tireless
studies and implementing, will effectively unfurl mind, unravel
thinking, and purge away all common desires.