Emptiness is form and form is emptiness ...

Therefore, Sariputra, in emptiness there is no form, nor feeling, nor perception, nor impulse, nor consciousness; No eye, ear, nose, tongue, body, mind; No forms, sounds, smells, tastes, touchables or objects of mind; No sight-organ element, and so forth, until we come to: No mind-consciousness element; There is no ignorance, no extinction of ignorance, and so forth, until we come to: there is no decay and death, no extinction of decay and death. There is no suffering, no origination, no stopping, no path. There is no cognition, no attainment and non-attainment.

Therefore, Sariputra, it is because of his non-attainment that a Bodhisattva, through having relied on the Perfection of Wisdom, dwells without thought-coverings. In the absence of thought-coverings he has not been made to tremble, he has overcome what can upset, and in the end he attains to Nirvana.

The Heart Sutra.
Translation by Edward Conze