We have been baptized into Christ (Rm 6:3). Therefore, we are baptized into His body, the Church (1 Cor 12:13), which has been given "every spiritual blessing in the heavens" (Eph 1:3). In Jesus, we have been chosen by God "before the world began, to be holy and blameless in His sight, to be full of love; He likewise predestined us through Christ Jesus to be His adopted sons" and daughters (Eph 1:4-5). "It is in Christ and through His blood that we have been redeemed and our sins forgiven" (Eph 1:7). "God has given us the wisdom to understand fully the mystery, the plan He was pleased to decree in Christ" (Eph 1:9).
In summary, in Christ we are gifted, chosen, holy, loved, adopted, redeemed, forgiven, and enlightened. The meaning of life is to be in Christ (see Jn 6:56; 15:5). "It pleased God to make absolute fullness reside in Him (Jesus) and, by means of Him, to reconcile everything in His Person" (Col 1:19-20).
We have been baptized into Christ. Live in Christ, and "remain in Him now, little ones" (1 Jn 2:28).