what is the goal?

ALLAH SUBHANA WAT'ALA DID NOT CREATE MAN AND JINN FOR NOTHING EXCEPT THAT WE SHOULD WORSHIP HIM/SURATUL ZARIYAT VERSE 56/. How to achieve it: By following the HOLY QUR'AN AND THE SUNNAH OF OUR BELOVED PROPHET MUHAMMAD SAL ALLAHU ALAIHI WA SALLAM AS HE SAID :I LEAVE WITH YOU TWO THING AS LONG AS YOU HOLD FAST TO THEM YOU WILL NEVER GO ASTRAY,1:AL QUR'AN. 2:SUNNAH.ALLAH SUBHANA WAT'ALA KNOWS BEST.

The simplest answer I could provide you is that.

The goal of every Muslim is to make his Lord (Allah) happy and to be entered into Jannah (Paradise).

But How can a Muslim Achieve his Goal?

Answer:

1. By obeying Allah (S.W.T).
2. Believing in Muhammad (S.A.W) as his Last Prophet and Slave.
3. Believing in all other Messengers (May Allah Peace Be Upon Them All).
4. Believing in all the revelations sent by Allah (S.W.T).
5. Believing in Judgement Day.
6. Believing in the angels.

As the Holy Qur'an speaks himself ,

It is not righteousness that you turn your faces towards the East and the West, but righteous is the one who believes in God, and the Last Day, and the angels and the Book and the Prophets (Holy Qur'an, 2:177)

Hope this the answer of your question :-)

He Who created Death and Life, that He may try which of you is best in deed: and He is the Exalted in Might, Oft-Forgiving;-

[Quran 67:2]

"Verily, in the remembrance of Allah, do hearts find rest." [13:28]

"He it is Who has created you from clay, and then has decreed a stated term (for you to die). And there is with Him another determined term (for you to be resurrected), yet you doubt (in the Resurrection)."

Surat Al-'An`ām Muhsin Khan

The decisions you make in this world will affect you in Judgment. Following the Quran and the Sunnah of the Prophet PBUH is your greatest aid for success.