According to Osho, spiritual progress is gauged not by visions but by their effect on the ego: the more advanced you are, the less you feel advanced. Authentic vision effaces the 'I' (Krishna is and I am not); imagined vision inflates pride. The true criterion is increasing humility, selflessness, and even nothingness, not accumulating experiences or claims.
You are truly growing when experiences make you humbler and less focused on yourself, not proud of being special.