Many people today think that; through a simple prayer salvation is gained. When in fact, salvation is a daily process. Much like building a home one brick per day. Salvation is gained and finished when a believer enters the kingdom of heaven.
However the aspect is present while upon the earth, for that is what gives us hope and peace. Which is the "putting on the helmet of salvation", (Ephesians 6:17), also called the "helmet of hope", (1 Thessalonians 5:8).
Now salvation is a free gift from our Lord; but it also demands a great responsibility on our behalf. Which is: submitting our life's totally to Christ, turning from our sinful and lustful ways, while walking accordingly to the word of God perfecting holiness, (Leviticus 19:2, Isaiah 42:6).
Jesus said: "but small is the gate and narrow the road that leads to life, (Matthew 7:14). Here you read a 2 fold part on our part. (1) The "gate" is the entrance to salvation. This is when a person excepts Christ into their heart and life, entering through the gate. (2) Notice he goes on the say; narrow is the road that leads to life". Why? You now have to walk on a "narrow road" of righteousness to get to your destination, Heaven!
So we must take that first step by entering through the gate, by receiving Jesus Christ as our personal Lord and Savior. Then we must walk that narrow path, by the putting away of our old self and having our minds renewed by the Holy Spirit,(Romans 12:2).
If we stray off that narrow path, how then can we expect to go straight to heaven when we die? For we have fallen off the path and lost the way,(Galatians 5:4). That means we have to repent of our wicked ways and receive Christ all over again, crucifying him once again, (Hebrews 6:6). This grieves the Holy Spirit. So let us walk in purity and holiness at all times. As obedient children before our Lord.