Ghora Angirasa, after having communicated this (view of the sacrifice) to Krishna, the son of Devaki and he never thirsted again (after other knowledge) said: `Let a man, when his end approaches, take refuge with this Triad: "Thou art the imperishable," "Thou art the unchangeable," "Thou art the edge of Prana."' On this subject there are two Rik verses (Rig-veda VIII, 6, 30):