Luke 11:9 "Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you." (ESV)
The old saying, "you never know till you ask" is true in spiritual things as well as worldly. God wants a relationship with us and as children we will be asking him many things. When you read the Lord's prayer, you see that a lot of it is asking of one sort or another. The petition to "give us this day our daily bread" simplifies the problem of asking for our worldly needs. It is balanced by asking for forgiveness, protection, guidance, and God's kingdom and his will, now in this world.
It also assumes that God already knows what we need for this day and every day. This doesn't mean we shouldn't ask for specifics. God wants us to show our trust and reliance on him. Asking for things like healing also shows our compassion for others and our dependence on him. We know the source of all power for healing and we ask that it be used for our own needs and for others in need as well.
When we ask for specific things we show our acknowledgment that provisions are part of the faithful care God has shown us in the past and continues to show us. There are some things we probably should not ask for and will not necessarily receive----asking that our favorite sport team will win every game, or asking to win the lottery, or asking to find a parking space, etc. These seem trivial and beneath the dignity of an all-powerful God. They also seem selfish.
However, even when we "playfully" ask for things like these, we are showing that we know our God is a God of great and unlimited power and that he is in control of everything. Nothing is beyond his ability. I think it also lightens our spirits a little when the day seems long and frustrating. Sometimes that parking space is truly a "need" because we are close to the frustration breaking point.
God understand all our ways of thinking and asking. We don't understand his, but we learn more each time we do ask. Communication and relationship are the goal, but humility is a key in our respect for the One of whom we ask everything. I think God knows when we are really serious in our asking and when we are being merely wishful. There is much about prayer we never seem to understand fully, but our desire to pray pleases God. Our willingness to keep asking, seeking, knocking is what he desires from us. Never turn away or give up. Asking for more of his Spirit will help us put other requests in perspective. The Holy Spirit is power and truth. Those are worthy of asking for any time!
Thank you, Lord, for hearing us whenever we ask, seek, knock. Help us to understand your will for us and for others so we will ask for things that you desire for us. We know that you know what is best for us at all times. We don't always understand your answers, but we know you are the place to come to ask....always. Thank you. amen