Devotion to Guru
If Siva (God) is angry, the Guru will protect you, but if the Guru is angry, no one can save you. Therefore with all your efforts take refuge in Him.

Even Gods and Sages can not save one who has been cursed by the Guru. Such a wretch soon perishes, without the least shadow of doubt.

- Sri Guru Gita, v. 79 and 106