If you are a meditator, as your meditation goes on becoming more and more luminous, your intelligence will be growing to the last breath of your life. Not only that, even after the last breath your intelligence will continue to grow - because you are not going to die, only your body will be dying. And the body has nothing to do with intelligence, mind has nothing to do with intelligence. Intelligence is the quality of your awareness - more aware, more intelligent. And if you are totally aware, you are as intelligent as this whole existence is.
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.
Perception without the word, which is without thought, is one of the strangest phenomena. Then the perception is much more acute, not only with the brain, but also with all the senses. Such perception is not the fragmentary perception of the intellect nor the affair of the emotions. It can be called a total perception, and it is part of meditation.
Proper effort is not the effort to make something particular happen. It is the effort to be aware and awake each moment, the effort to overcome laziness and merit, the effort to make each activity of our day meditation.
Meditation, you know, comes by a process imagination. You go through all these processes purification of the elements - making the one melt the other, that into the next higher, that into mind, that into spirit, and then you are spirit.
Make your meditation a continuous state of mind. A great worship is going on all the time, so nothing should be neglected or excluded from your constant meditative awareness.