Nice to see you back here @AMASH!!
I agree with your appreciation of Regeneration. I did it for 50 days and didnt gave me anything related to my true purpose (at least not in an obvious way). But it gave me lots of healing and enhanced Selfsteem. As @Michel I feel Regeneration should be first step into subs, but thats just my opinion, to each its own.
The sub that gave me solid path manifestation and a clear view of my true purpose definitely was The Alchemist, looking back into the experience it made it all happen very quickly and at the same time very organically, so I didnt necesarilly got a hold of it until it was already manifested.
You know in Traditional Chinese Medicine they have a whole section devoted to Face Reading, you can read the whole life story and health status of a person in the face, and one set of lines shows if that particular person is indeed following his true spiritual path on earth.
So the deeper you have those lines the more you are actually serving you true purpose, what I find specially interesting is that those lines manifest whether or not you are consciously aware that you are on your true path, you can have those lines even if you believe you are not fullfilling your purpose, but you are actually doing it.
Sometimes we think we are not in our path because we dont have what we want or because we dont like what we have, but that can be exactly the right experience for that moment in your life, the exact right and necessary step in order for something else to manifest. Really cool stuff.