Sudden Illumination means deliverance while still in this life. How shall I make you understand that? You may be compared to lion cubs, which are genuine lions from the time of their birth; for, with those who undertake to become suddenly illumined, it is just like that. The moment they practise it, they enter the Buddha-stage, just as the shoots put forth by bamboos in spring will have grown to resemble the parent plants without the least difference remaining even before spring has departed.
From Zen Teaching of Instantaneous Awakening
teaching of the Zen Master Hui Hai
Rendered into English by John Blofeld
Translation of the Tun Wu Ju Tao Yao Mên Lun
and Tsung Ching Record
Foreword by Charles Luk
Buddhist Publishing Group, Totnes