PHB: dalet - Commandment family דהחך
The meaning of each letter in the Dalet ד or Commandment Family has something to do with the commandment.
The dalet ד is the commandment.
The he ה is drawn with a dalet ד as the commandment, then a vav returns halfway up the left side. The response is not a full response because the commandment is not understood. The response is like when sheep hear the shepherd's voice.  They are drawn to it, but they do not understand the words.
He means 'aha!' It is the response of recognition. [v 1]
Final kof ך
- he ה - aha, m. to be drawn to God, but not understanding.
- Joh 10:27 My sheep hear my voice, and I know them, and they follow me: