What is the Purpose of Life?

He has delivered us from the domain of darkness and  transferred us to the kingdom of his beloved Son, 16 For by him all things were created, in heaven  and on earth, visible and invisible, whether thrones or dominions or rulers or  authorities—all things were created through him and for him. Colossians 1:13

For who has  known the mind of YHWH? For from him and through him and for him are all things. To him be the glory forever! Amen.  Isaiah 40:13; Romans 11:34-36

Why does God call us?

God, who has called you into fellowship with his Son Jesus Christ our Lord, is faithful. 1 John 1:3

And our fellowship is with the Father. 1 Corinthians 1:9

If you have any encouragement from being united with Christ, if any comfort from
his love, if any fellowship with the Spirit, if any tenderness and compassion. Philippians 2:1

If we claim to have fellowship with him yet walk in the darkness, we lie and do not live by the truth.
But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus, his Son, purifies us from all sin. 1 John 1:6-7
  
May the grace of the Lord Jesus Christ, and the love of God, and
the fellowship of the Holy Spirit be with you all. 2 Corinthians 13:14