Prayer plays a big role in knowing God and His Will for your life.  Some spend years seeking purpose,  not realizing if they listen to their heart their path will become clear. In Matthew 22:37-39 it says. "You must love the Lord your God with all of your heart, all your soul, and all your mind. And you are to love your neighbor as yourself."

That is it, nothing more and nothing less. This is God's Will for each of us. When your heart is filled with a positive attitude you focus on God instead of self. You put Him 1st in all you do. Putting God 1st gives Him your will and allows Him to lead you and just need to go with the flow. Proverbs 3: 5-6 "Trust in the Lord with all of your heart;
and lean not unto thine own understanding. In all ways acknowledge Him and He shall direct thy paths."

God's words not mine. 
His promise to you if you only trust and obey.