Necessity of Language

The word escapes me, as many words do.
Is it that I'm expecting too much?
Vast, empty, longing, rolled into one,
sentry's farsightedness and such.

The soul has such breadth, such capacity;
words seem almost outside the need,
superfluous, but we're so glad to see,
that there's one to state feeling or deed..

A glance that identifies with its mark,
warm hand reassures it's sincere.
A tilt of the head show intention to hark.
Still, the right words make the meaning clear.