If I had spoken out like that,
    I would have betrayed your children.
¹⁶ When I tried to understand all this,
    it troubled me deeply
¹⁷ till I entered the sanctuary of God;
    then I understood their final destiny.

¹⁸ Surely you place them on slippery ground;
    you cast them down to ruin.
¹⁹ How suddenly are they destroyed,
    completely swept away by terrors!
²⁰ They are like a dream when one awakes;
    when you arise, Lord,
    you will despise them as fantasies.

²¹ When my heart was grieved
    and my spirit embittered,
²² I was senseless and ignorant;
    I was a brute beast before you.

²³ Yet I am always with you;
    you hold me by my right hand.
²⁴ You guide me with your counsel,
    and afterward you will take me into glory.
²⁵ Whom have I in heaven but you?
    And earth has nothing I desire besides you.
²⁶ My flesh and my heart may fail,
    but God is the strength of my heart
    and my portion forever.

²⁷ Those who are far from you will perish;
    you destroy all who are unfaithful to you.
²⁸ But as for me, it is good to be near God.
    I have made the Sovereign Lord my refuge;
    I will tell of all your deeds. Psalm 73:15-28

What does it mean that flesh and heart may fail but God is still the strength of your heart and your portion?

If I had spoken out like that,
    I would have betrayed your children.
¹⁶ When I tried to understand all this,
    it troubled me deeply
¹⁷ till I entered the sanctuary of God;
    then I understood their final destiny.

¹⁸ Surely you place them on slippery ground;
    you cast them down to ruin.
¹⁹ How suddenly are they destroyed,
    completely swept away by terrors!
²⁰ They are like a dream when one awakes;
    when you arise, Lord,
    you will despise them as fantasies.

²¹ When my heart was grieved
    and my spirit embittered,
²² I was senseless and ignorant;
    I was a brute beast before you.

²³ Yet I am always with you;
    you hold me by my right hand.
²⁴ You guide me with your counsel,
    and afterward you will take me into glory.
²⁵ Whom have I in heaven but you?
    And earth has nothing I desire besides you.
²⁶ My flesh and my heart may fail,
    but God is the strength of my heart
    and my portion forever.

²⁷ Those who are far from you will perish;
    you destroy all who are unfaithful to you.
²⁸ But as for me, it is good to be near God.
    I have made the Sovereign Lord my refuge;
    I will tell of all your deeds. Psalm 73:15-28

Read verse 20. How much like a dream forgotten do your trials and enemies feel like right now? How do you get yourself to that mental space?