That they are all gurus means they are all our well-wishing guardians. In that plane, we shall imbibe help from everywhere. Their benediction and their grace will come from everywhere. They are all well-wishers, all guardians, they all guide us towards the highest attainment of our fortune. There cannot be any objection to that.
Gradation is always there, according to our inner position.
So, we must not be afraid. Of course there is a time, when we are surrounded by an unfavorable environrnent, that the association of a real saint is very rare. In that stage, we may be warned not to mix with the Mayavadis , Buddhists, Sankarites, Naga babas, and so many other groups of so-called sadhus, so that we may not run hither and thither only to find a guru to get any advice. In a particular stage, however, when we already have a taste for the real truth, we are taken to that plane where everyone is our guru, helping us advance towards our destination. This caution is valuable in the beginning, because there are so many cheaters who want to devour us.