सिद्धिमेति शिवप्रीत्या हित्वापि श्रवणादिकम् । लिंगबेरार्चनामात्रान्मुक्ताः पुर्वे महाजनाः ७ ।
A person who worships the phallic emblem or the image in this manner will attain salvation even without Śravaṇa etc.Many noble men of yore have been Uberated solely by this simple worship.
I shall tell you what Śiva Himself had said and what I heard from my own preceptor. Śiva alone is glorified as Niṣkala (nameless and formless) since He is identical with supreme Brahman.