To enlighten the student two factors come into play. The first is the master and the second is devotion. The presence of the latter is so critical that its abundance can make the master appear. Hence the saying < when the student is ready the master will appear>

Meditate

A pond full of fishes is never clear in day time. The fishes keep moving never letting the dirt settle. At night although, when fishes sleep, dirt settles and one can fetch clear water out of the pond.
My dear friends, these fishes are like our thoughts and the pond is our mind. You can fetch peace only when your mind is clear.Let the ...thoughts lie, MEDITATE.