Sorry I can't help regarding your question, but I was just curious after reading your post. I know this sounds really stupid, but does/can dhikr have that kind of effect? I ask because I don't have a shaykh, but I have been thinking about getting advice on how to do dhikr effectively without getting into a tariqah etc. I just feel at the moment that all my ibaadah (salah, dhikr,salawat, istighfar, qur'an) are devoid of any impact, because I don't have focus, prescence of heart etc. and it feels like I'm just going through the motions. So any recommendations in that regard will be much appreciated.