It was explained to me like this. A perfect analogy:
'Many mystics can be seen as being the captain of a toy boat they sail quite safely on the clear waters of the local pond or boating lake;
what is worrying is that as a 'captain' they will soon grow discontent with this profession ... and then expect to go straight to being the captain of an ocean liner, packed with passengers, bound on a round-the-world cruise ...'
One thing at a time ... perfecting the mystic arts is a life long experience.