A trip, a stumble or falling down a few stairs, not enough to seriously put you out, but enough to send a little shock wave through your system when you need it. Which is precisely what these things are intended for, a little shake up to alter your mind space to get you out of a habit or pattern of behavior that has become dull and unproductive but hard to change.
The universe has a way of helping you to realign things by creating opportunities to bring you back to your senses.
The times when you might catch your own foot or trip over a crack in the concrete, can predominantly happen when you are too preoccupied with what other people might be thinking of you at that particular moment. How often have you experienced it yourself or seen it first hand, walking past someone on the street, and just for a moment giving your physical appearance or manner too much thought, and whoops, you trip, just to put things back into perspective. Life is much more than just outward appearances, and tripping like this, is a small reminder that you have perhaps been making things all about you and how you appear, when there is a much bigger picture at play. It is a reminder to give, to smile, inwardly and outwardly, it's not about how you look or how you appear on the outside, it's only ever about what you give, and a smile is something that immediately makes the world a better place, always.
Falling down a few stairs can occur when you need a little shake up to get you out of a mental rut. It is showing you that you are heading towards a potentially negative downward spiral, and that if you don't change things, you could continue to keep going down a path that is not best suited for you. Hurting yourself in such a way that makes any pain linger around for a few days, is a way to remind you of why you fell in the first place, it helps to keep a new found alertness in place, so that you can put a more positive spin on your day and to your thought processes over all.
Tripping up the stairs is a sign that you are rushing too fast ahead of yourself and not taking enough care to focus on one thing at a time. This is a way of slowing yourself and your thought processes down, so that you can be total in the moment, and give each and every part of your day the kind of attention that it deserves.