When you pray the Our Father does your mind stay blank?
Mmh, I rarely pray Our Father. When I pray it, then I would say it slowly so that at least I really acknowledge what I said. Sometimes instead of `give us our bread`, I also say `bless us today`. Also, sometimes I say `forgive our sins` instead `forgive our debts`. It's the same meaning basically.
When I pray it, I only pray it once but with some deep reflection - and speaking it slowly helps me at least to recognize and to reflect the meaning of each word.
I didn't see the sense to repeat Our Father every 2 minutes after finishing once.
Our Father is a perfect sample of a pray, because Jesus said we should pray like that.
But generally my pray consists of:
1). Greetings to Father in Heaven by acknowledging that He is King of King, Creator of Universe, His Kingdom rules, ...
2). Give thanks to everything you want to thank / be thankful for, for instance your family, your job, your life. But also thanking that His Son came to redeem the sin, or thanking the Holy Spirit to fulfill our life, also you can thank for His forgiveness because we are sinners
3). Ask for what you need, something you want to ask for.
4). Lastly ask for His constant guidance through Holy Spirit.
That's basically how we should pray. It's very easy and very simple but I rarely have the same words in every pray. But the most important thing is not that a pray must be very beautiful, simple, or easy, or complex, but it's only about your honesty and being sincere in front of Him. I would say normally the greetings to Him would always be the first, but thanking Him and asking Him for what you need can also be in reversed order. I don't think there is any strict rule how you must make the pray. Finally it's your heart communicating with Him in your mind, again it's not the degree of complexity or choice of beautiful words which matters, but solely your heart through your mind. Wordings are second to that.