Vedic Mantras delivers cosmic energies that purify our system in addition to our atmosphere. Mantras give mental peace , leisure , good health as powerful vibrations developed have favourable impact on to our human body , that is scientifically proved too . विद्यां श्रीविजयं तथा सुनियतं धीरं च वीरं वरम्‌। https://www.youtube.com/watch?v=5VeSyP9JRw0