Read 'periya-puranam' - the biographies of Siva Devotees. The biographies of devotees increase our devotion towards ishTa-devata. Here is the soft copy to download: ............ https://archive.org/details/PeriyaPuranamEnglishTranslationVanmikanathanG.R.K.Mutt/page/n1 ........... rg, sriram