Brahman is beyond mind and speech, beyond concentration and meditation, beyond the knower, the known and knowledge, beyond even the conception of the real and unreal. In short, It is beyond all relativity.
Meditation is like a single log of wood. Insight and investigation are one end of the log; calm and concentration are the other end. If you lift up the whole log, both sides come up at once. Which is concentration and which is insight? Just this mind.
If the traveller can find A virtuous and wise companion Let him go with him joyfully And overcome the dangers of the way. But if you cannot find Friend or master to go with you, Travel on alone.
The first thing to realize in meditation is that there is no authority, that the mind must be completely free to examine, to observe, to learn. And so there is no following, no accepting, no obedience.
In the Buddha's life story we see the three stages of practice: Morality comes first, then concentrated meditation, and then wisdom. And we see that the path takes time.