What gives Life to your soul?

Proverbs 3:21-26
New King James Version (NKJV)

21 My son, let them not depart from your eyes—
Keep sound wisdom and discretion;
22 So they will be life to your soul
And grace to your neck.
23 Then you will walk safely in your way,
And your foot will not stumble.
24 When you lie down, you will not be afraid;
Yes, you will lie down and your sleep will be sweet.
25 Do not be afraid of sudden terror,
Nor of trouble from the wicked when it comes;
26 For the Lord will be your confidence,
And will keep your foot from being caught.