Nicky Gumbel uses an analogy to describe the limitations of science in one of the excellent Alpha videos. If someone finds a cake then if they are a scientist they could potentially tell you what it was made of, when it was made and how it was made but without knowing the cake maker they could not tell you who made it or why it was made (and they might struggle to know where it was made).
Similarly, we need God to tell us why we were made.
So here are some things God says in His book on that subject:
“For we are God’s masterpiece, created in Christ Jesus to do good works, which God prepared in advance for us to do.” Ephesians 2:10
“Do you not know that your bodies are temples of the Holy Spirit, who is in you, whom you have received from God? You are not your own; you were bought at a price.” 1 Corinthians 6:19,20a
One of the remarkable things that God has done in making human beings is the collective purpose He has for us. Together we worship together to become one and somehow, astonishingly, corporately become a member of the Godhead.
Husbands, love your wives, just as Christ loved the church and gave himself up for her 26 to make her holy, cleansing her by the washing with water through the word, 27 and to present her to himself as a radiant church, without stain or wrinkle or any other blemish, but holy and blameless. 28 In this same way, husbands ought to love their wives as their own bodies. He who loves his wife loves himself. 29 After all, no one ever hated their own body, but they feed and care for their body, just as Christ does the church— 30 for we are members of his body. 31 “For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh.” 32 This is a profound mystery—but I am talking about Christ and the church.
Daughters of kings are among your honoured women;
at your right hand is the royal bride in gold of Ophir.
10 Listen, daughter, and pay careful attention:
Forget your people and your father’s house.
11 Let the king be enthralled by your beauty;
honour him, for he is your lord.
12 The city of Tyre will come with a gift,[d]
people of wealth will seek your favour.
13 All glorious is the princess within her chamber;
her gown is interwoven with gold.
14 In embroidered garments she is led to the king;
her virgin companions follow her –
those brought to be with her.
15 Led in with joy and gladness,
they enter the palace of the king.