Easy mantra in the title refers to the mantra whose pronunciation and other aspects of mantra are easy to comprehend. Such as small bheeja mantra of length varies from one to maximum three characters. Now-a-days the pronunciation and other rules can be obtained or verified from internet.
In this context, as per scriptures, what is the need for a physical guru inorder to get mantra siddi for such mantras?
Is it only because of the reason that it has been mentioned in scriptures that guru is mandatory for any such mantra?