This summary is not the rule. The rule text controls.
This rule explains some basic terms used when courts talk about hearsay evidence. A "statement" can be something a person says out loud, writes down, or even shows through an action, as long as they meant it to communicate something. For example, if someone nods their head to say "yes," that counts as a statement even though no words were spoken.
A "declarant" is simply the person who made the statement. This is just a label courts use to identify who originally said or wrote something.
"Hearsay" is the key idea here. It means someone is trying to use a statement made outside of the current trial or hearing to prove that what the statement says is true. For example, if a witness testifies, "My neighbor told me it was raining that day," and the lawyer wants to use that to prove it actually rained, that's hearsay. The rule matters because hearsay often can't be used as evidence unless it fits into a special exception. Courts limit hearsay because the person who originally made the statement isn't in court to be questioned about it.