Even though Ganesha is the Lord of everything, he is primarily worshiped for the removal of obstacles. He is also often worshiped for success, intelligence, and gaining popularity. There are specific Ganesha mantras for begetting progeny, defeating rivals, and gaining wealth.
Before entering into Virata capital for ajnatavasa, Yudhishtira prayed to Durga Devi with a stotra. Before the Kurukshetra war started, Krishna asked Arjuna to pray to Durga Devi. She appeared in the sky and blessed Arjuna with success.
Four Methods to Deal with Obstacles
Turn Kurukshetra Into Dharmakshetra
Nirvana Shatkam
manobuddhyahankaarachittaani naaham na cha shrotrajihve na cha ghraananetre. na cha vyomabhoomirna tejo na vaayushchidaanandaroopah' shivo'ham shivo'h....
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