But they had a sense that they were on an adventure . It was big, and it was new, and it was scary. But they discovered, day by day, what it really meant for them to walk with God. It's an interesting thought. One of the only real clues we've got, is in the last few words of this morning's reading.
Prayer is probably the best beginning point.
When Jesus left, they all started praying like crazy. They were probably praying for Jesus to come back. We could probably do a little more of that. But they were also praying for guidance. They were praying for knowledge, for help with all of the needs that were pressing in around them.