We trust in many things like food, our house, our job, our bank account, hard work, our family or society. When things do not work we sometimes drop all else and trust the Lord! But only because we have come to our end, at least we think our end. So now to try to trust the Lord everyday is a stretch for many of us. Our understanding of life and events is somewhat limited, so that’s why the verse says to not rely too much on our thinking or understanding. God knows better than us, even though we like to think we understand everything.
Proverbs 3:5 Trust in the Lord with all your heart, and do not rely on your own understanding; 6 think about Him in all your ways, and He will guide you on the right paths.
Look at the story of Joseph in the Bible. Joseph had a vision to be a governor in Egypt, yet God let him through all kinds of very difficult trials. If Joseph had not been Egypt’s prisoner, he could have never been Egypt’s governor.
Every difficulty we pass through prepares us for our future work for God. So right in the middle (but this is hard to do), we need to trust in the Lord.