All...
All the truth is out there we just have to reason it out correctly...and believe truth when we are told truth, and disbelieve lies as soon as they become obvious as lies. If we did then scammers would find it much harder to weave their delusions around us...we wouldn't be taken in by the profiteers who paint delusions to sell their merchandise and we wouldn't believe the reasoners who openly say that they will crush Jesus' teaching even without knowing his teaching or even owning a Holy Bible.
But the point here is why do believers pray...we do this because Jesus showed us how to pray and we like to do what he tells us. We then find that a righteous strength is being added to our own being. An added dimension enters our lives and we become much more confident because we find it easier to dismiss all the tripe that is thrown at us all...believers and non-believers.
If we analyse things we can say we are being filled emotionally by a nourishment that reaches deep within us...and a clever scientist could put clever reasoning to it...but for my money, we, by adopting meekness and righteous truth as our guidence-tool are being filled with God's living water...an invisible quencher of hard to reach thirsts.