Confined by Arjuna's arrows, he could not succeed to come out (of the forest), but the snakes lady, his mother, determined to save his life.
न शशाक स निर्गन्तुं निरुद्धोऽर्जुनपत्रिभिः। मोक्षयामास तं माता निगीर्य भुजगात्मजा॥