[wstein]

There is no 'should' to this adventure.

This *might* be one way to reach the 'Spiritual World' but certainly not the only nor the best way.

To use your analogy about the Harvard professor, how did the first Harvard professors get to be professors if there were no previous Harvard professors?? Who acted as the VISA issuing authority before anyone was already vetted to do so? Clearly they had to do it without prior help.

How many of the great spiritual people had QUALIFICATIONs and VISAs? Seems to me that Buddha for instance spent many years wandering around to various traditions trying to gain entrance until he finally gave up, sat down, and figured it out by himself.

Looking outside is totally counter to spiritual pursuit. The door to the 'Spiritual World' is internal (to yourself).