Well now I'm scared, for myself -- assuming you are correct with that figure. I know what's in my heart. Ain't good.
Gojira, the Bible gives us all kinds of ways to help determine who we are . . . and as you said, to help determine the condition of our heart. For one, are we rude? Are we unkind? Do we berate and belittle others? Or, are we filled with a remarkable form of Love that few are able to relate to? Do you "feed your enemies?" Do you Love them? Do you care about them, or do words of hatred slip off of your tongue (or keyboard) as though they were gliding upon butter?
If your heart has been Spiritually Circumcised by Christ, which is the removal of the Sinful Nature, you will know it, for your life will begin to change and it will only continue in that Godly process. I would recommend to all people that they read the entire New Testament and specifically search out each piece of Scripture that offers itself as a test of who we are.
Below is a small sample by which to compare ourselves. Do we identify with the below Scripture? Is this who we are?
Romans 12:2, 10-12, 14, 16-21 NKJV - 2 And do not be conformed to this world, but
be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God. ... 10
Be kindly affectionate to one another
with brotherly love, in honor giving preference to one another; 11
not lagging in diligence,
fervent in spirit, serving the Lord; 12
rejoicing in hope,
patient in tribulation, continuing steadfastly in prayer; ... 14
Bless those who persecute you; bless and
do not curse. ... 16 Be of the same mind
toward one another. Do not set your mind on high things, but
associate with the humble. Do not be wise in your own opinion. 17
Repay no one evil for evil. Have regard for good things in the sight of all men. 18 If it is possible, as much as depends on you,
live peaceably with all men. 19 Beloved,
do not avenge yourselves, but rather
give place to wrath; for it is written, "Vengeance is Mine, I will repay," says the Lord. 20 Therefore "If your enemy is hungry,
feed him; If he is thirsty,
give him a drink; For in so doing you will heap coals of fire on his head." 21 Do not be overcome by evil, but overcome evil with good.