Controlling mind is difficult. There is no magic pill once taken can control the mind until it ceases thinking. Every thoughts creeps up from the mind must to be governed expect sleeping hours because ego does not exist while sleeping. We should practice mind to change the direction of thinking. For this we must have ability to discriminate the things. This ability is called intellect or intelligence.
What is intelligence? Distinguishing real from unreal is intelligence. for example, Sun rises in the east and sets in the west is unreal; really sun never rises or sets, only because of earth revolves on its own, it appears to be as sun rises and sets. This discriminating ability is intelligence. Intellect has power of discriminating things and decisive in nature.
By educating ourselves we can increase our intelligence level. Only through this intelligence we can capture the powers of mind: attention, selection and rejection. Then it is possible to change the direction of minds thinking. Happiness is achieved only when mind functions under the control of intelligence.
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