People complain that they have trouble finding their soul-mate.
Sometimes, a person's nose might be a bit too high in the air...
When one’s nose is up in the air, it’s ever so hard to make proper judgments. The higher you go, the thinner the oxygen. The brain needs enough oxygen to function properly. In regard to shidduchim (matchmaking or dating, loosely translated), the individual with the high-elevated nose overestimates himself and sorely underestimates a match that might be perfect for him. His or her power of judgment is sorely impaired.
So, one should keep one's nose at low altitude, to avoid missing the train to his or her own wedding.