We can have great ideas and the "perfect" plans but God's plans and ideas are so much more better than ours. As we embark on our great adventure with our itinerary in hand, I am confident that it will be just a guideline of sorts that can totally change as we let God take the reins.
Life is like that if we let God take absolute control, our plans are then just guidelines as God directs our path.
A man's heart plans his way, but the Lord determines His steps. ~ Proverbs 16:9