"For behold, it is as easy to give heed to the word of Christ, which will point to you a straight course to eternal bliss, as it was for our fathers to give heed to this compass, which would point unto them a straight course to the promised land."
While Lehi's family was travelling through the wilderness, they often forgot or neglected to give heed to the compass that God had provided for them (called a Liahona). So, often they wandered until they remembered to consult God. I think we often do the same thing, even though we don't have personal Liahonas. :) Instead, we have the scriptures, and we have prayer... and other things that help us like church, visiting and home teaching, the words of modern prophets, attending the temple, etc. Sometimes, we neglect those things and we wander. And hopefully, when we realize that we're lost, we remember, pay attention to God again, and get back on track.
I think God's point in this verse though, is... wouldn't it just be so much easier if we learned to be consistent and stay on track all the time? Wouldn't we be happier and more confident spiritually? And it *is* easy. All we have to do is pick up our scriptures, or even just pull them up online. All we have to do is take a few minutes to talk to God. It's those small, simple things that add up to a huge improvement in our level of happiness and in our ability to stay on track and move closer to God. I think sometimes we neglect to do the little things because they seem so small, and we don't think that such small things will make a big impact, or that it's easy to skip a day and nothing bad will happen, etc. ... And that's all true, as far as it goes. But once we let things slip a little, it is easier to let them slip more, or for longer, until we've been lost for a long time in the wilderness. Today, let's work on overcoming those excuses. Let's become unlost, even if we were only a tiny bit. ... And let's do the small, easy things that bring us closer and closer to God.