Need for care in Meditaion

The point that every student of meditation should always bear in mind is that all knowledge and instructions are conveyed to the mind and brain by a man's own soul; it is the soul that illumines his way. The Teachers and Masters of the race work through souls. This cannot be too often reiterated. Therefore, the prime duty of every aspirant should be the perfect performance of meditation and service and discipline, and not the making of contact with some great Soul. It is less interesting, but preserves him from illusion. If he does this, the higher results will take care of themselves. Should an apparition appear to him, therefore, and should such an entity make platitudinous comments, he will use the same judgment as he would in business or ordinary life with a man who came and said to him, "A great work lies in your hands, you are doing well. We see and know, etc., etc." He would probably laugh and continue with the activity or duty of the moment.
-Holy Master D.K. through Alice Bailey, From Intellect to Intuition