GOOD OR BAD HEART

"The lamp of the body is the eye. Therefore, when your eye is good, your whole body also is full of light. But when your eye is bad, your body also is full of darkness."      Luke 11.34

The eyes are always judging, whether something is good or bad. When they are able to find the good in someone else, their body is filled with light - they are considered to have a good heart. However, the body will be full of darkness if they look to other people's flaws. In this case, this person is considered to have a bad heart.
How have your eyes judged others?

GOOD CONSCIENCE

"...having faith and a good conscience, which some having rejected, concerning the faith have suffered shipwreck."      1 Timothy 1.19

Sin brings on a bad conscience. A bad conscience brings on doubt. Doubt neutralizes faith, which brings on death.
Many have had their faith suffer shipwrecks because they rejected a good conscience.
Those who prize their salvation maintain their faith and a good conscience.

THE SPIRIT OF THE LORD

"The Spirit of the Lord will come powerfully upon you and you will prophesy with them and you will be changed into a different person."     1 Samuel 10.6

When you surrender unconditionally,  the Spirit of the Lord will come upon you and transform you into a new person. Traumas, complexes, bad tempers, addictions and everything else that isn't according to God is removed.
This is when a new person is born. From this moment on, you will begin achieving great things in love and materially.
But, first the Spirit of God must come upon you.

Happiness

"Happy is the man who is always reverent, but he who hardens his heart will fall into calamity."

Proverbs 28:14

To man is given daily the choice of hearing the voice of Good or evil. Those who hear and practice the voice of God fear Him and are protected from evil.