The passage you've referenced from 1 Timothy 6:19 speaks to the importance of prioritizing eternal values and investing in things that truly matter.
What is the real life?
"Real life" in this context refers to spiritual life, eternal life, or life in Christ.
1 Timothy 6:19 NKJV
19 storing up for themselves a good foundation for the time to come,
that they may lay hold on eternal life.
This is not just about being alive. This is about meaningful relationship with God, this is about faith and obedience to His will.
What does real-life entail?
Real life entails a transformed heart and mind, characterized by love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control (Galatians 5:22-23). It involves living in alignment with God's purposes, seeking His kingdom above all else (Matthew 6:33).
What does Paul mean by "Laying a good foundation for the future, and how could this be achieved?"
Colossians 3:2 NKJV
2 Set your mind on things above, not on things on the earth.
Laying a good foundation for the future involves setting your mind on things above, on spiritual treasures that have lasting value. It means building one's life on the solid rock of Jesus Christ and listening to His words (Matthew 7:24-27).
An acronym I like to use (See this previous questions) for practically, laying a good foundation for the future is:
S.E.E.D. - Study, Examine, Evaluate, Discern
S - Study: Regularly engage in studying the Word of God. Seek to understand and apply its teachings.
Psalm 119:105 NKJV
105 Your word is a lamp to my feet And a light to my path.
E - Examine: Take the time to carefully examine your beliefs and align them with God's Word. Examine areas where growth and change are needed.
2 Corinthians 13:5 NKJV
5 Examine yourselves as to whether you are in the faith. Test
yourselves. Do you not know yourselves, that Jesus Christ is in
you?—unless indeed you are disqualified.
E - Evaluate: Evaluate your thoughts, choices, and behavior to ensure they align with God's truth and honor Him. The goal is to live in obedience to His will.
Romans 12:2 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.
D - Discern: Develop the ability to discern between good and evil, truth and falsehood, by relying on the guidance of the Holy Spirit and the wisdom found in Scripture. We can cultivate spiritual discernment through prayer and seeking God in all things.
Hebrews 5:14 NKJV
14 But solid food belongs to those who are of full age, that is,
those who by reason of use have their senses exercised to discern
both good and evil.