Sairam,
This muhurta is also called creator's hours where one can create what he wants.
Vishwamitra Rishi took rich Benefits out of this muhurta. His life transformation is an example for the importance of this muhurta.
Horoscope defects are removed in a horoscope. ATMA, antaratma and parmatma gets purified. Marma points energy is balanced. All these are as per atharvana veda.
Write ramanama, chant any God name or do mudra mantra on this period. Brahma muhurta dhyana is equal to 1 year of sleep or meditation as per Garga muni. Third eye opens and all seven chakras gets activated.
1. Swa-adyaya in this time develops lot of memory and knowledge.
2. Just meditating some mantra will produce lots of medicines within the body.
3. Chanting Sudarshana mantras removes harmful toxins and all enemies become friends.
4. Black magic effects are removed.
Dana done in brahmi muhurta is 10 times more than other period and karma's of last 10 births are rectified. Your favourites dish should be given. This gives nakshatra shanti.
2. Just lighting deepa will give yoga shanti.
3. Just remembering grama devathe will give karana shanti.
4. Taking holy water dip and Giving arghya to Surya Deva at this time is equivalent to asjwamesha yaaga with 12 mantra.
Thanks..sairam