A Pure Heart
It takes a pure heart to see God (Matt 5:8). You can attend church services, read Bible, and pray; but if sin fills your heart, you will not see God. You will know when you have encountered God because your life will no longer be the same.
Reference: Experiencing God Day by Day by Henry Blackaby and Richard Blackaby
@khaikhai, I gave you a vote!
If you follow me, I will also follow you in return!
We're saved by repenting of our sins, accepting what Jesus did on the cross to pay for those sins, and by accepting Jesus as our Lord. If Jesus is our Lord we will do whatever the Bible commands.
We're not saved by being good. You can't have a pure heart without being saved and once saved you can't lose your salvation. As the Bible says,
(Ephesians 4:30 NIV) And do not grieve the Holy Spirit of God, with whom you were sealed for the day of redemption.