l'on se connaisse

One of the examples in my lesson today is focusing on the subjonctif.

The example is:

"Il est important que l'on se connaisse mieux"

So why is the L in front of the "on"?  Usually le or la represents another subject or another person, something being referred to.  But in this example, I don't see any reference to anything else.

Can you explain?

THANKS!

Emily

In this case, it's done for euphony, because the vowel-on-vowel sound of «que on» sounds "choppy" to the ear so the «l'» is added for the "gliding" between words.

It's similar to the function of "-t-" in Y a-t-il. Grammatically, you only need  «a» and «il» (verb-subject), but "a-t-il" sounds more fluid.

Thanks a million - that makes sense!